Afia visits the shopping mall on Tuesday to purchase some groceries. if she goes back after 295 days, she visits the shopping mall again on a Wednesday.
To find out what day Afia visited the shopping mall again, we can divide 295 by 7 because there are 7 days in a week. we need to find out how many full weeks have passed and how many days.
= 295/ 7 = 42.1
The 295 divided by 7 is 42 with a remainder of 1 or we can write as that 42 full weeks and 1 day have passed.
When 42 weeks have passed that day will be Tuesday and the 1 day after Tuesday is Wednesday.
Therefore, Afia visited the shopping mall again on a Wednesday.
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This trapezoid-based right prism has a volume of 30 cm
6 cm
5 cm
1 cm
What is the area of the base of the prism?
The area of the base of the prism is,
Area = 5.5 cm²
We have to given that,
This trapezoid-based right prism has a volume of 30 cm³.
We have;
Here we assume
a = 6
b = 5
c = 1
Now we know that
Area = (a + b) c / 2
Area = (6 + 5) 1 /2
Area = 11/2
Area = 5.5 cm²
Thus, The area of the base of the prism is,
Area = 5.5 cm²
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Will give brainliest if right
aabc ~ def. what sequence of transformations will move aabc onto adef?
d. a dilation by scale factor of 2, centered at the origin, followed by a reflection over the y-axis
AABC is transformed onto ADEF by a dilation by a scale factor of 2, centered at the origin, followed by a reflection over the y-axis.
The sequence of transformations that will move AABC onto ADEF is a dilation by a scale factor of 2, centered at the origin, followed by a reflection over the y-axis.
Firstly, dilation is a transformation that changes the size of an object but not its shape.
The dilation factor is multiplied by each coordinate, so when the dilation is centered at the origin, the new coordinates will be twice the original coordinates.
Therefore, AABC will be enlarged to A'BC', and DEF will be enlarged to D'E'F, both with double the size.
Then, reflection is a transformation that flips an object over a line of reflection. In this case, the line of reflection is the y-axis.
When we reflect A'BC' over the y-axis, we get A''B''C'', and when we reflect D'E'F over the y-axis, we get D''E''F''.
Therefore, AABC is transformed onto ADEF by a dilation by a scale factor of 2, centered at the origin, followed by a reflection over the y-axis.
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Find dy/dt given that x^2+y^2 = 2x+4y, x = 3, y = 1 and dx/dt = 7
To find dy/dt, we need to use implicit differentiation.
First, we differentiate both sides of the equation with respect to t:
2x(dx/dt) + 2y(dy/dt) = 2(dx/dt) + 4(dy/dt)
Next, we plug in the given values for x, y, and dx/dt:
2(3)(7) + 2(1)(dy/dt) = 2(7) + 4(dy/dt)
Simplifying, we get:
42 + 2(dy/dt) = 14 + 4(dy/dt)
Subtracting 2(dy/dt) and 14 from both sides:
28 = 2(dy/dt)
Finally, we divide both sides by 2 to solve for dy/dt:
dy/dt = 14
To find dy/dt, first differentiate the given equation x^2+y^2=2x+4y with respect to time t. Use the chain rule:
2x(dx/dt) + 2y(dy/dt) = 2(dx/dt) + 4(dy/dt).
Now substitute the given values, x = 3, y = 1, and dx/dt = 7:
2(3)(7) + 2(1)(dy/dt) = 2(7) + 4(dy/dt).
Solve for dy/dt:
42 + 2(dy/dt) = 14 + 4(dy/dt).
Rearrange and solve:
2(dy/dt) - 4(dy/dt) = 14 - 42,
-2(dy/dt) = -28.
Finally, divide by -2:
dy/dt = 14.
So the value of dy/dt is 14 when x = 3, y = 1, and dx/dt = 7.
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3. [-/1 Points] DETAILS SCALCET9 4.7.005. What is the maximum vertical distance between the line y = x + 72 and the parabola y - x for - SxS9? Need Help? Watch
The maximum vertical distance between the line y = x + 72 and the parabola y = x^2 is 518.67 units.
To find the maximum vertical distance between the line and the parabola, we need to find the point(s) where the distance is maximum.
The line y = x + 72 is a straight line with slope 1, and it intersects the y-axis at 72.
The parabola y = x^2 is a symmetric curve with vertex at (0,0).
To find the point(s) where the distance is maximum, we can find the intersection point(s) of the line and the parabola.
Substituting y = x + 72 in the equation of the parabola, we get x^2 - x - 5184 = 0.
Solving for x using the quadratic formula, we get x = (1 ± sqrt(1 + 20736))/2.
The two intersection points are (108, 180) and (-107, 65).
The maximum vertical distance between the line and the parabola is the difference between the y-coordinates of these points, which is approximately 518.67 units.
Therefore, the maximum vertical distance between the line y = x + 72 and the parabola y = x^2 is 518.67 units.
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Which pair of transformations moves quadrilateral 1 to quadrilateral 2?
o a. reflect it over the line y = -3, then rotate it 90° counterclockwise about the origin
o b. reflect it over the x-axis, then rotate it 180° about the origin
o c. rotate it 90° counterclockwise about point (-3,-3), then translate it 8 units to the right
o d translate it 8 units to the right, then reflect it over the line y=-3
c. rotate it 90° counterclockwise about point (-3,-3), then translate it 8 units to the right
How does quadrilateral 1 move to quadrilateral 2?The correct pair of transformations that moves quadrilateral 1 to quadrilateral 2 is option d: translate it 8 units to the right, then reflect it over the line y = -3.
First, by translating it 8 units to the right, all points of quadrilateral 1 will shift horizontally to the right by 8 units, maintaining their relative positions.
Next, reflecting it over the line y = -3 will result in a vertical flip of the shape. This reflection will change the orientation of the quadrilateral while keeping the translated positions intact.
Together, these two transformations will precisely move quadrilateral 1 to quadrilateral 2. Therefore, option d is the correct choice.
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Persevere with Problems Triangle XYZ is reflected across the x-axis to produce triangle X'Y'Z'. Then triangle X'Y'Z' is rotated 90° counterclockwise about the origin to create triangle X''Y''Z''. If triangle X''Y''Z'' has vertices X''(4, 0), Y''(2, –1), and Z''(2, 1), what are the coordinates of the vertices of triangle XYZ? Write your answers as integers.
The vertices of triangle XYZ are (-4, 0), (1, -2), and (-2, 1).
How to calculate the verticesWe are given that X''(4, 0), Y''(2, -1), and Z''(2, 1). We can use these coordinates to determine the coordinates of the vertices of triangle XYZ.
Starting with X, we have (-y, x) = (4, 0). This implies that y = 0 and x = -4.
Moving on to Y we have (-z, y) = (2, -1). This implies that z = -2 and y = 1.
Finally, for Z, we have (-x, z) = (2, 1). This implies that x = -2 and z = 1.
Therefore, the vertices of triangle XYZ are (-4, 0), (1, -2), and (-2, 1).
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select the equivalent expression (7/2)^8
5764801/256, is equivalent expression of [tex](7/2)^8[/tex] which is an exact value and cannot be simplified any further.
What is equivalent expression and How do you write an equivalent expression?Equivalent expressions are expressions that work the same even though they look different. If two algebraic expressions are equivalent, then the two expressions have the same value when we plug in the same value for the variable. You can write equivalent expressions by combining like terms. Like terms are terms that have the same variables raised to the same powers.
We can simplify the expression[tex](7/2)^8[/tex]by raising both the numerator and denominator to the 8th power:
We get,
[tex](7/2)^8 = 7^8 / 2^8[/tex]
To solve this value, simplify the numerator and denominator separately:
So we get,
[tex]7^8[/tex]= 5764801
[tex]2^8[/tex]= 256
Therefore, [tex](7/2)^8[/tex] = 5764801/256, which is an exact value and cannot be simplified any further.
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Pls, answer this, 5 points and brainliest for the one who answers first!
Answer: C
Step-by-step explanation:
f moved left 4 spaces in x direction to get to g
so take opposite sign
f(x+4)
The following costs were for bikeway inc., a bicycle manufacturer that uses the high-low method:
output fixed costs variable costs total costs
950 $ 45,000 $ 95,000 $ 140,000
1,050 $ 45,000 $ 105,000 $ 150,000
1,100 $ 45,000 $ 110,000 $ 155,000
1,150 $ 45,000 $ 115,000 $ 160,000
at an output level of 1,000 bicycles, per unit total cost is calculated to be:
multiple choice
$139.13.
$145.00.
$121.50.
$126.09.
$100.00.
The per unit total cost at an output level of 1,000 bicycles is calculated to be $139.13.
To calculate the per unit total cost using the high-low method, follow these steps:
1. Identify the highest and lowest output levels (1,150 and 950 bicycles).
2. Calculate the difference in variable costs and output levels: ($115,000 - $95,000) / (1,150 - 950) = $20,000 / 200 = $100 per bicycle.
3. Calculate the variable cost for 1,000 bicycles: $100 x 1,000 = $100,000.
4. Add the fixed cost: $100,000 (variable cost) + $45,000 (fixed cost) = $145,000 (total cost).
5. Calculate the per unit total cost: $145,000 / 1,000 = $139.13 per bicycle.
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Construct a square, and a regular Pentagon with equal side equal to 0. 5 inch.
To construct a square and a regular pentagon with equal side lengths of 0.5 inch, we need to use basic geometric constructions.
How can I create a square and a regular pentagon with equal side lengths of 0.5 inch?To construct a square and a regular pentagon with equal side length of 0.5 inch, follow these steps:
(a) Construct a Square:
Draw a horizontal line segment of length 0.5 inch.From the endpoints of the line segment, draw two perpendicular lines of length 0.5 inch each, meeting at the endpoints of the original line segment.From the endpoints of these new line segments, draw two more perpendicular lines of length 0.5 inch each, meeting at the endpoints of the second line segment.Connect the endpoints of the four line segments to form a square.
(b) Construct a Regular Pentagon:
Draw a circle with a radius of 0.5 inch. This will be the circumcircle of the pentagon.Draw a horizontal line through the center of the circle.Mark the points where the line intersects the circle. These will be the vertices of the pentagon.Draw a line segment connecting two adjacent vertices of the circle.Using a compass, copy the length of this line segment to the next vertex, and connect the two vertices to form a line segment of the pentagon.Repeat this process for all five vertices of the circle to form the regular pentagon.
A geometric construction is a method of drawing a figure using only a straightedge (an unmarked ruler) and a compass.
For the square, we start by drawing a horizontal line segment of length 0.5 inch. We then draw two perpendicular lines of length 0.5 inch each, meeting at the endpoints of the original line segment.
These two new line segments represent the adjacent sides of the square. We then repeat this process to create the remaining two sides of the square, and connect all four endpoints to form the complete square.
For the regular pentagon, we need to construct a circle with a radius of 0.5 inch. This will be the circumcircle of the pentagon, meaning that all five vertices of the pentagon will lie on the circle.
We draw a horizontal line through the center of the circle, and mark the points where the line intersects the circle. These five points will be the vertices of the pentagon.
We then draw line segments connecting adjacent vertices, using a compass to copy the length of each line segment from the previous one.
This process will create all five sides of the pentagon, and the figure will be a regular pentagon with equal side lengths of 0.5 inch.
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Test the convergence of the series: is it convergentor divergent or inconclusive or none of them
Once we apply one of these tests and determine whether the series converges or diverges, we can then further analyze the series to find its sum, if it exists.
To test the convergence of a series, we typically use one of several tests, depending on the nature of the series. Some of the commonly used tests are:
Divergence test: If the terms of a series do not approach zero, the series must diverge. The test states that if lim(n->inf) an != 0, then the series diverges.
Comparison test: If the terms of a series are positive and can be compared with a known convergent or divergent series, we can determine the convergence or divergence of the given series. If an <= bn for all n and the series sum of bn converges, then the series sum of an also converges. If an >= bn for all n and the series sum of bn diverges, then the series sum of an also diverges.
Limit comparison test: If the terms of a series are positive, we can compare the given series with a known convergent series, using the limit comparison test. If lim(n->inf) (an/bn) = L, where L is a positive finite number, then both series either converge or diverge.
Ratio test: If the terms of a series approach zero and the ratio of consecutive terms approaches a limit L, then the series converges if L < 1 and diverges if L > 1. If L = 1, the test is inconclusive.
Root test: If the terms of a series approach zero and the nth root of the absolute value of the nth term approaches a limit L, then the series converges if L < 1 and diverges if L > 1. If L = 1, the test is inconclusive.
Alternating series test: If the terms of a series alternate in sign and decrease in magnitude, then the series converges.
There are also other tests, such as integral test, p-series test, and Dirichlet test, among others, which can be used to test the convergence of certain types of series.
Once we apply one of these tests and determine whether the series converges or diverges, we can then further analyze the series to find its sum, if it exists.
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Lochlon transfers his investment into a money market account. The account now earns compound interest of 1. 95% annually with a maturity date of 5 years
The final amount Lochlon will earn on his investment after 5 years of compound interest is $1,104.36
How we calculate the compound interest?Compound interest is a type of interest calculation where the interest earned is added to the principal amount, and the resulting sum becomes the new principal for the next interest calculation. The formula for compound interest is:
A = [tex]P(1 + r/n)^(^n^t^)[/tex]
Where:
A is the final amount including the interest
P is the principal amount
r is the annual interest rate as a decimal
n is the number of times the interest is compounded per year
t is the time in years
In this case, Lochlon transferred his investment into a money market account that earns compound interest of 1.95% annually, with a maturity date of 5 years.
To find the final amount Lochlon will earn, we need to know the principal amount, the interest rate, the number of times the interest is compounded per year, and the time period.
Assuming Lochlon invests a principal amount of P dollars, with an annual interest rate of r = 1.95%, and the interest is compounded annually (n = 1) for a time period of 5 years (t = 5), the formula for calculating the final amount (A) is:
A = [tex]P(1 + r/n)^(^n^t^)[/tex]
= [tex]P(1 + 0.0195/1)^(^1^*^5^)[/tex]
= [tex]P(1.0195)^5[/tex]
if Lochlon invests $1,000, for example, then his final amount (A) after 5 years would be:
A = [tex]1000(1.0195)^5[/tex]
= 1000(1.10436)
= $1,104.36
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what principal will earn $67.14 interest at 6.25% for 82 days?
Answer: attach an image
Step-by-step explanation:
To find the principal, we can use the formula for simple interest:
I = P*r*t
where I is the interest, P is the principal, r is the interest rate, and t is the time in years.
We need to convert 82 days to years by dividing it by 365 (the number of days in a year):
t = 82/365
t = 0.2247
Now we can plug in the values we know and solve for P:
67.14 = P*0.0625*0.2247
P = 67.14/(0.0625*0.2247)
P = 1900
Therefore, the principal is $1900.
Building a campfire you start by stacking kindling wood to form a pentagonal pyramid that is 27 centimeters tall. the base area is 965 square centimeters. what is the volume of the campfire pyramid
The volume of the campfire pyramid is approximately 8,175 cubic centimeters. This is found by using the formula for the volume of a pyramid and plugging in the given values for the height and base area of the pentagonal pyramid.
The formula for the volume of a pyramid is
V = (1/3) * base_area * height
where V is the volume, base_area is the area of the base, and height is the height of the pyramid.
In this case, the height of the pyramid is given as 27 cm, and the base area is given as 965 square cm. To find the volume, we can plug these values into the formula
V = (1/3) * 965 cm² * 27 cm
V = 8,175 cm³
Therefore, the volume of the campfire pyramid is 8,175 cubic centimeters.
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The area of a rooftop can be
expressed as (x + 9)2. The rooftop
is a rectangle with side lengths
that are factors of the expression
describing its area. Which expression
describes the length of one side of
the rooftop?
The expression that describes the length of one side of the rooftop is therefore: x - 9.
What is expression?In mathematics, an expression is a combination of one or more variables, constants, and mathematical operations such as addition, subtraction, multiplication, and division. An expression can be as simple as a single variable or constant, or it can be a more complex combination of variables and operations.
Here,
The expression for the area of the rooftop is (x + 9)², where x is a variable representing the length of one side of the rectangle. To find the factors of this expression, we can expand it using the identity (a+b)² = a² + 2ab + b².
Expanding (x + 9)², we get:
(x + 9)² = x² + 18x + 81
Now, we need to find the factors of this expression that are also factors of the length of the sides of the rectangle. Since the sides of the rectangle must have a common factor of x, we can factor out x from the expression:
x² + 18x + 81 = x(x + 18) + 81
The factors of (x + 9)² are x(x + 18) + 81, (x + 9)(x + 9), (x - 9)(x - 9), and -(x + 9)(x + 9).
Since we are looking for factors that represent the length of one side of the rooftop, we can eliminate the negative factor and the factor (x + 9)(x + 9), since the sides of a rectangle must be positive.
That leaves us with x(x + 18) + 81 and (x - 9)(x - 9).
The expression describes the length of one side of the rooftop: x - 9
This is because the sides of a rectangle must be positive, and (x - 9) is a factor of (x + 9)² that represents a positive length.
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The potters want to buy a small cottage costing $118,000 with annual insurance and taxes of $710. 00 and $2800. 0. They have saved $14,000. 00 for a down payment, and they can get a 5%, 15 year mortgage from a bank. They are qualified for a home loan as long as the total monthly payment does not exceed $1000. 0. Are they qualified?
The potters are qualified for the home loan as their total monthly payment is $831.02, which is less than $1000.00.
The total cost of the cottage along with the annual insurance and taxes is $118,000 + $710 + $2800 = $121,510.
The down payment made by the potters is $14,000. Therefore, the amount to be financed through a mortgage is $121,510 - $14,000 = $107,510.
Using the formula for the monthly payment of a mortgage, which is given by:
M = P [ i(1 + i)^n ] / [ (1 + i)^n - 1]
where P is the principal (amount to be financed), i is the monthly interest rate, and n is the total number of monthly payments.
For a 5%, 15-year mortgage, the monthly interest rate is 0.05/12 = 0.0041667, and the total number of monthly payments is 15 x 12 = 180.
Plugging in the values, we get:
M = $107,510 [ 0.0041667 (1 + 0.0041667)^180 ] / [ (1 + 0.0041667)^180 - 1 ]
M = $831.02
Therefore, the total monthly payment for the mortgage and the annual insurance and taxes is $831.02 + $59.17 + $233.33 = $1123.52, which is more than the maximum allowed payment of $1000.00. Hence, the potters are qualified for the home loan.
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Solve the following Exact Inexact Differential Equation. If it is inexact, then
solve it by finding the Integrating Factor.
(3xy + y^2) dx + (x^2 + xy) dy = 0
The general solution to the differential equation is, |3x^4/(y(x+y))|x + |x^3| ln|y| + |x^3| ln|x+y| + h(x) = C.
The partial derivative of (3xy + y^2) with respect to y is 6xy + 2y, and the partial derivative of (x^2 + xy) with respect to x is 2x + y. Since these are not equal, the differential equation is not exact.
To make it exact, we need to find an integrating factor μ(x, y) such that μ(x, y)(3xy + y^2) dx + μ(x, y)(x^2 + xy) dy = 0 is exact. We can find μ(x, y) by using the formula:
μ(x, y) = e^(∫(∂M/∂y - ∂N/∂x)/N dx)
where M = 3xy + y^2 and N = x^2 + xy. We have:
(∂M/∂y - ∂N/∂x)/N = (6xy + 2y - 2x - y)/(x^2 + xy) = (6xy - x - y)/(x^2 + xy)
We can now find the integrating factor μ(x, y) by integrating this expression with respect to x:
μ(x, y) = e^(∫(6xy - x - y)/(x^2 + xy) dx) = e^(3ln|x| - ln|y| - ln|x+y| + C) = e^(ln|x^3/(y(x+y))| + C) = |x^3/(y(x+y))|e^C
where C is the constant of integration.
Now we multiply the original differential equation by the integrating factor μ(x, y) to obtain:
|3x^4/(y(x+y))| dx + |x^3/(y(x+y))| dy = 0
This is now an exact differential equation, and we can find its solution by integrating with respect to x or y. Integrating with respect to x, we get:
|3x^4/(y(x+y))|x + g(y) = C
where g(y) is the constant of integration. To find g(y), we integrate the coefficient of dy:
g(y) = ∫|x^3/(y(x+y))| dy = |x^3| ln|y| + |x^3| ln|x+y| + h(x)
where h(x) is another constant of integration. Substituting g(y) back into the solution, we have:
|3x^4/(y(x+y))|x + |x^3| ln|y| + |x^3| ln|x+y| + h(x) = C
This is the general solution to the differential equation.
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In an effort to eat healthier, Bridget is tracking her food intake by using an application on her phone. She records what she eats, and then the
application indicates how many calories she has consumed. One Monday, Bridget eats 10 medium strawberries and 8 vanilla wafer cookies as an
after-school snack. The caloric intake from these items is 192 calories. The next day, she eats 20 medium strawberries and 1 vanilla wafer cookie as an after-school snack. The caloric intake from these items is 99 calories.
a. Write a system of equations for this problem situation. Let S represent the number of calories in one strawberry and let W represent the number of calories in one vanilla wafer cookie.
The equation _____ represents the calories Bridget ate on Monday and the equation _____ represents the calories she ate the next day.
b. Solve the system of equations using the substitution method. Check your work.
The number of calories in each strawberry is ____
And the number of calories in each vanilla wafer cookie is ____. The solution is ____.
PLEASE HELP ME
The equation 10S + 8W = 192 represents the calories Bridget ate on Monday and the equation 20S + 1W = 99 represents the calories she ate the next day.
The number of calories in each strawberry is 4, and the number of calories in each vanilla wafer cookie is 19.
a. We have two equations for the two days, using S for the number of calories in a strawberry and W for the number of calories in a vanilla wafer cookie:
On Monday:
10S + 8W = 192
On Tuesday:
20S + 1W = 99
b. To solve the system of equations using the substitution method, first solve one of the equations for one of the variables. We'll choose the second equation and solve for W:
W = 99 - 20S
Now substitute this expression for W in the first equation:
10S + 8(99 - 20S) = 192
Expand and simplify:
10S + 792 - 160S = 192
Combine like terms:
-150S = -600
Now divide by -150:
S = 4
Now that we have the value for S, substitute it back into the expression for W:
W = 99 - 20(4)
W = 99 - 80
W = 19
So the number of calories in each strawberry is 4, and the number of calories in each vanilla wafer cookie is 19. The solution is (S, W) = (4, 19).
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Use linear approximation to approximate √125.04 as follows Let f(x) = ³√ x, and find the linearization of f(x) at x = 125 in the form y = mx+ b Note: The values of m and bare rational numbers which can be computed by hand. You need to enter expressions which give m and b exactly You should not have a decimal point in the answers to either of these parts m= b = Using these values, find the approximation Also, for this part you should be entering a rational number, not a decimal approximation ²√ 125.04≈
To approximate √125.04 using linear approximation, first find the linearization of f(x) = ³√x at x = 125. Then use the point-slope form of the equation to find the equation of the tangent line and plug in x = 125.04 to get the approximation.
To approximate √125.04 using linear approximation and the function f(x) = ³√x, first find the linearization of f(x) at x = 125 in the form y = mx + b. Calculate f(125) and f'(x).Calculate f'(125): Use the point-slope form of the equation
1: Calculate f(125) and f'(x).
f(125) = ³√125 = 5
f'(x) = (1/3)x^(-2/3)
2: Calculate f'(125).
f'(125) = (1/3)(125)^(-2/3) = 1/15
3: Use the point-slope form of the equation y - y1 = m(x - x1) to find the equation of the tangent line.
y - 5 = (1/15)(x - 125)
4: Rearrange to find y in terms of x.
y = (1/15)(x - 125) + 5
5: Determine the values of m and b.
m = 1/15
b = (1/15)(-125) + 5
6: Plug in x = 125.04 to approximate √125.04.
²√125.04 ≈ (1/15)(125.04 - 125) + 5
The linearization of f(x) at x = 125 is y = (1/15)x + b, with m = 1/15 and b = (1/15)(-125) + 5. Using these values, the approximation of √125.04 is (1/15)(125.04 - 125) + 5.
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In the diagram shown, segments AE and CF are both perpendicular to DB. DE=FB, AE=CF. Prove that ABCD is a parallelogram.
Given:- ABCD is a parallelogram, and AE and CF bisect ∠A and ∠C respectively. To prove:- AE∥CF Proof:- Since in a parallelogram, opposite angles are equal.
What is a Parallelogram?A parallelogram is a geometric shape that has four sides and four angles. It is a type of quadrilateral, which means it has four sides, and its opposite sides are parallel to each other.
The opposite sides of a parallelogram are also equal in length. The opposite angles of a parallelogram are also equal in measure.
The shape of a parallelogram looks similar to a rectangle, but it differs from a rectangle in that its angles are not necessarily right angles. A square is a special case of a parallelogram in which all four sides are equal in length and all four angles are right angles
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evaluate the integral tan inverse v(x+2 ) dx by making substitution
and then table of integrals
To evaluate the integral of tan inverse v(x+2) dx, we need to make a substitution. Let u = x + 2, then du/dx = 1 and dx= du. Therefore, the final answer is: ∫ tan inverse v(x+2) dx = (x+2) tan inverse v(x+2) - tan inverse v(x+2) / v'(x+2) + C
Substituting this back into the integral, we get:
∫ tan inverse v(x+2) dx = ∫ tan inverse v(u) du
Using the formula from the table of integrals, we have:
∫ tan inverse v(u) du = u tan inverse v(u) - ∫ u / (1 + v(u)^2) du
Substituting back u = x + 2, we get:
∫ tan inverse v(x+2) dx = (x+2) tan inverse v(x+2) - ∫ (x+2) / (1 + v(x+2)^2) dx
Now, we can use another substitution, let t = v(x+2), then dt/dx = v'(x+2) and dx = dt / v'(x+2).
Substituting this back into the integral, we get:
∫ (x+2) / (1 + v(x+2)^2) dx = ∫ (x+2) / (1 + t^2) dt / v'(x+2)
Using the formula from the table of integrals, we have:
∫ (x+2) / (1 + t^2) dt = tan inverse t + C
where C is the constant of integration.
Substituting back t = v(x+2), we get:
∫ (x+2) / (1 + v(x+2)^2) dx = tan inverse v(x+2) / v'(x+2) + C
Therefore, the final answer is:
∫ tan inverse v(x+2) dx = (x+2) tan inverse v(x+2) - tan inverse v(x+2) / v'(x+2) + C
where C is the constant of integration.
To evaluate the integral of tan inverse v(x+2) dx using substitution, we'll first make a substitution:
Let u = x+2. Then, du = dx.
Now, we can rewrite the integral as:
∫tan^(-1)(v(u)) du
Next, we'll look up the integral of tan^(-1)(v(u)) in a table of integrals. Unfortunately, there isn't a direct formula for this specific integral. However, we can use integration by parts to proceed further.
Let I = ∫tan^(-1)(v(u)) du. Let's choose:
f(u) = tan^(-1)(v(u)) and df(u) = du,
g'(u) = 1 and dg(u) = u du.
Using integration by parts formula:
I = f(u)g(u) - ∫g(u)df(u)
I = u*tan^(-1)(v(u)) - ∫u(1/(1+v^2(u))) du
Now, we'll need to substitute back x+2 for u:
I = (x+2)*tan^(-1)(v(x+2)) - ∫(x+2)(1/(1+v^2(x+2))) dx
This integral doesn't have a simple closed-form solution, so the final answer will remain in the form shown above.
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A researcher asked 933 people what their favourite type of TV programme was: news, documentary, soap or sports. They could only choose one answer. As such, the researcher had the number of people who chose each category of programme. How should she analyse these data?
a. T-test
b. One-way analysis of variance
c. Chi-square test
d. Regression
The researcher should analyze the data obtained from 933 people who were asked about their favorite type of TV program, with the condition that they could only choose one answer. The appropriate statistical test to analyze these data is c. Chi-square test.
The Chi-square test is used for analyzing categorical data, which is the case in this scenario where individuals have to choose among news, documentary, soap, or sports. The test will help the researcher determine if there is a significant difference in preferences for TV program types among the respondents.
The specific techniques and statistical tests used may vary depending on the goals of the research and the nature of the data.
Therefore option c is correct.
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A dealer paid $10,000 for a boat at an auction. At the dealership, a salesperson sold the boat for 30% more than the auction price. The salesperson received a commission of 25% of the difference between the auction price and the dealership price. What was the salesperson’s commission?
The commission of the salesperson is $750 if he received a commission of 25% of the difference between the auction price and the dealership price.
The salesperson's commission can be calculated by first finding the dealership price, which is 30% more than the auction price of $10,000.
30% of $10,000 = $3,000
Dealership price = $10,000 + $3,000 = $13,000
Next, we need to find the difference between the dealership price and the auction price
$13,000 - $10,000 = $3,000
The salesperson's commission is 25% of this difference
25% of $3,000 = $750
Therefore, the salesperson's commission is $750.
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a norman window is a window with a semicircle on top of a regular rectangular window as shown in the diagram.what should the dimensions of the rectangular part of the norman window be to allow in as much light as possible if there is only 12 ft of framing material available
The width should be 12 feet and the height should be 6 feet.
Let's assume that the rectangular part of the window has a width of x feet. Since the semi-circle at the top is half the width of the rectangle, its radius will also be x/2 feet. Therefore, the height of the rectangle can be expressed as 12 - x/2, since we have a total of 12 feet of frame material available.
To find the area of the rectangle, we can multiply its length and width together: A = x(12 - x/2) = 12x - x²/2. To maximize this area, we can take its derivative with respect to x and set it equal to 0:
dA/dx = 12 - x = 0
x = 12
So the width of the rectangle should be 12 feet, and its height would be 12 - (12/2) = 6 feet. This would maximize the amount of light entering the rectangular part of the window, given the 12 feet of frame material available.
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determine if each of the numbers below is a solution to the inequality 3x-2<2-2x
The solution set of the inequality 3x-2 < 2-2x is:
(4/5, ∞)
Which numbers are solutions for the inequality?To find this we need to isolate the variable in the inequality.
Here we have:
3x - 2 < 2 - 2x
add 2x in both sides and add 2 in both sides, then we will get:
3x + 2x < 2 + 2
5x < 4
Now we can divide both sides by 5 to get:
x < 4/5
That is the inequality solved.
Then the solution set of the inequality is:
(4/5, ∞)
The set of all real numbers larger than 4/5.
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Find the probability that a point chosen randomly inside the rectangle is in each given shape. Round to the nearest tenth.
(a) Square
(b) Not the triangle
The probabilities are given as follows:
a) Square: 1/6.
b) Not the triangle: 43/48.
How to calculate a probability?A probability is calculated as the division of the desired number of outcomes by the total number of outcomes in the context of a problem/experiment.
The area of the rectangle is given as follows:
A = 12 x 8 = 96.
(area of rectangle, multiply the dimensions).
The areas of each figure are given as follows:
Square: 4² = 16. (area of square is the square of the side length).Triangle: 0.5 x 4 x 5 = 10. (area of right triangle is half the multiplication of the side lengths).Hence the probability of the square is given as follows:
p = 16/96 = 1/6.
(area of square divided by total area).
The probability that the region is not the triangle is given as follows:
p = (96 - 10)/96
p = 86/96
p = 43/48.
(triangle and not triangle are complementary events).
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Angle θ is in standard position and
(
−
5
,
−
6
)
(−5,−6) is a point on the terminal side of θ. If
0
∘
≤
θ
<
36
0
∘
0
∘
≤θ<360
∘
, what is the measure of θ, to the nearest tenth of a degree (if necessary)?
The measure of angle θ, to the nearest tenth of a degree is 233.1°.
To find the measure of angle θ, we need to use trigonometry. We can see that the point (-5,-6) lies in the third quadrant since both x and y coordinates are negative. We can draw a right-angled triangle with the origin (0,0) as the vertex and the given point (-5,-6) as one of the vertices on the x-y plane.
The hypotenuse of this triangle will be the distance between the origin and the point (-5,-6), which can be calculated using the Pythagorean theorem.
Using the Pythagorean theorem, we get:
√(5²+6²) = √(25+36) = √61
Now we can use trigonometry to find the measure of angle θ. We can see that the sine of θ is equal to the opposite side over the hypotenuse and the cosine of θ is equal to the adjacent side over the hypotenuse. So we have:
sin θ = -6/√61 and cos θ = -5/√61
Using a calculator, we can find that θ is approximately 233.1° to the nearest tenth of a degree.
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Kaleb’s mom owns a confidence store. He is helping her replace the tile floor. The tile costs $2.00 per ft squared.
How much will the tile cost?
Answer:
425
Step-by-step explanation:
212,5*2=425
Square root 2/3 + square root 6
Answer:
[tex] \sqrt{ \frac{2}{3} } + \sqrt{6} \\ = \frac{ \sqrt{2} }{ \sqrt{3} } + \sqrt{6} \\ = \frac{ \sqrt{2} }{ \sqrt{3} } \times \frac{ \sqrt{3} }{ \sqrt{3} } + \sqrt{6} \\ = \frac{ \sqrt{6} }{3} + \sqrt{6} \\ = \frac{ \sqrt{6} }{3} + \frac{3 \sqrt{6} }{3} \\ = \frac{ 4\sqrt{6} }{3} [/tex]
A waiter had five tables he was waiting on, with three women and three men at each table. How many customers total did the waiter have?
The total number of customers that the waiter had would be = 30 customers.
How to calculate the total number of customers?The total number of tables the waiter had = 5 tables
The total number of women at each table = 3
The total number of men at each table = 3
The total number of people one each table = 6
Therefore the total number of customers that the waiter attended to would be = 5×6 = 30
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