1. domain: All real numbers. range: [2,4]
2. It is a function.
3. Not one to one function.
What is function?
A function is a relationship or expression involving one or more variables. It has a set of input and outputs
1. domain of the given function would be, real numbers.
range of the function is [2,4].
2. Yes. It is a function.
3. No it is not one to one function. It is many to one function?
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solve the quadratic inequality. write the final answer using interval notation x^(2 )-2x-35>0
The interval notation of x^(2 )-2x-35>0 is (-∞,-5)∪(7,∞).
To solve the quadratic inequality x^(2)-2x-35>0, we first need to find the roots of the quadratic equation x^(2)-2x-35=0. We can do this by factoring the equation:
(x-7)(x+5)=0
The roots of the equation are x=7 and x=-5. Now, we can use these roots to determine the intervals where the inequality is true. We can do this by testing values in each interval:
- For x<-5, let's test x=-6: (-6)^(2)-2(-6)-35=1>0, so the inequality is true in this interval.
- For -57, let's test x=8: (8)^(2)-2(8)-35=29>0, so the inequality is true in this interval.
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Concrete tiles are made using buckets of cement,sand and gravel mixed into the ratio of 1:4:6. How many buckets of gravel are needed for 4 bucket of cement?
24 buckets of gravel are needed for 4 buckets of cement.
What are ratio and proportion?In its most basic form, a ratio is a comparison between two comparable quantities.
There are two types of proportions One is the direct proportion, whereby increasing one number by a constant k also increases the other quantity by the same constant k, and vice versa.
If one quantity is increased by a constant k, the other will decrease by the same constant k in the case of inverse proportion, and vice versa.
Given, Concrete tiles are made using buckets of cement, sand, and gravel mixed into the ratio of 1 : 4 : 6.
Now, 4×1 : 4×4 : 4×6, when it is 4 bucket of cement.
4 : 16 : 24.
Therefore, 24 buckets of gravel needed.
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A mortgage loan of $250,000 for 30 years has an annual interest rate of 3% applied mortily What is the monthly mortgage payment?
The monthly mortgage payment for a 30-year mortgage loan of $250,000 with an annual interest rate of 3% is about $1,054.63.
What is monthly mortgage payment?A monthly mortgage payment is the amount of money paid each month to repay a mortgage loan. The payment is typically made up of principal the amount borrowed and interest the cost of borrowing the money and may also include additional amounts for taxes and insurance.
We can use the formula for the monthly mortgage payment, which is:
M = P * r * (1 + r)^n / ((1 + r)^n - 1)
Where
M is the monthly mortgage paymentP is the principal (loan amount)r is the monthly interest rate (annual interest rate divided by 12)n is the total number of monthly payments (30 years * 12 months per year = 360)First, we need to convert the annual interest rate to a monthly interest rate:
r = 3% / 12 = 0.0025
Next, we can plug in the values:
M = 250000 * 0.0025 * (1 + 0.0025)^360 / ((1 + 0.0025)^360 - 1)
We can simplify this expression and find that the monthly mortgage payment is approximately $1,054.63.
Therefore, the monthly mortgage payment for a 30-year mortgage loan of $250,000 with an annual interest rate of 3% is about $1,054.63.
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Please answer with full solutions and only answer if you know!
Answer:
a) even
b) 4th differences: -72
c) minimum: 0, maximum: 4. This function has 0 real zeros.
d) -1377
e) -288
Step-by-step explanation:
You want to know a number of the characteristics of the function f(x) = -3x⁴ +6x² -10:
whether even or oddwhich finite differences are constantnumber of zerosAROC on [2, 7]IROC at x=3a) Even/OddA function is even if f(x) = f(-x). The graph of an even function is symmetrical about the y-axis. An even polynomial function will only have terms of even degree.
The exponents of the terms of f(x) are 4, 2, 0. These are all even, so we can conclude the function is an even function.
We can also evaluate f(-x):
f(-x) = -3(-x)⁴ +6(-x)² -10 = -3x⁴ +6x² -10 ≡ f(x) . . . . . the function is even
b) Finite differencesWe can look at values of x on either side of x=0. The attachment shows function values and finite differences for x = -3, -2, ..., +3.
The fourth finite differences are constant at -72. (We expect this value to be -3·4!, the leading coefficient times the degree of the polynomial, factorial.)
c) Number of zerosA 4th-degree polynomial will always have exactly four zeros. They may be complex, rather than real. Complex zeros will come in conjugate pairs, so the number of real zeros may be 0, 2, or 4; a minimum of 0 and a maximum of 4.
This polynomial function has no real zeros. The four complex zeros are approximately ...
±1.18864247 ±0.64255033i
d) AROC on [2, 7]The average rate of change on the interval [a, b] is given by ...
AROC = (f(b) -f(a))/(b -a)
For [a, b] = [2, 7], this is ...
AROC = (((-3(7²) +6)7² -10) -((-3(2²) +6)2² -10)/(7 -2)
= ((-147 +6)(49) -(-12 +6)(4)) / 5 = (-6909 +24)/5 = -6885/5 = -1377
The average rate of change on [2, 7] is = -1377.
e) IROC at x=3The derivative of the function is ...
f'(x) = -3(4x³) +6(2x) = 12x(-x² +1)
f'(3) = 12·3(-3² +1) = 36(-8) = -288
The instantaneous rate of change at x=3 is -288.
Write an equation
perpendicular to y =
2/5x+ 4 with a
y-intercept of -3
Answer:
y = (-5/2)x - 3
Step-by-step explanation:
To find an equation of a line that is perpendicular to the given line and passes through the point (0, -3), we need to use the fact that perpendicular lines have opposite reciprocal slopes.
The given line has a slope of 2/5, so the slope of the line perpendicular to it is:
-1 / (2/5) = -5/2
This means that the equation of the perpendicular line has the form:
y = (-5/2)x + b
where b is the y-intercept we want to find.
Since the line passes through the point (0, -3), we can substitute these values into the equation and solve for b:
-3 = (-5/2)(0) + b
b = -3
Therefore, the equation of the line perpendicular to y = 2/5x + 4 with a y-intercept of -3 is:
y = (-5/2)x - 3
Nationally, about 11% of the total U.S. wheat crop is destroyed each year by hail.† An insurance company is studying wheat hail damage claims in a county in Colorado. A random sample of 16 claims in the county reported the percentage of their wheat lost to hail.
17 7 11 9 10 20 13 13
8 8 23 21 11 9 10 3
The sample mean is x = 12.1%. Let x be a random variable that represents the percentage of wheat crop in that county lost to hail. Assume that x has a normal distribution and σ = 5.0%. Do these data indicate that the percentage of wheat crop lost to hail in that county is different (either way) from the national mean of 11%? Use α = 0.01.
The answer is no, these data do not indicate that the percentage of wheat crop lost to hail in that county is different (either way) from the national mean of 11%.
The sample mean is x = 12.1% and the population mean is μ = 11%. We want to test if there is a significant difference between the sample mean and the population mean. We can use a t-test to compare the means.
The null hypothesis is H0: μ = 11%, and the alternative hypothesis is Ha: μ ≠ 11%.
The t-statistic is calculated as:
t = (x - μ) / (σ / √n)
where x is the sample mean, μ is the population mean, σ is the standard deviation, and n is the sample size.
Plugging in the values, we get:
t = (12.1 - 11) / (5.0 / √16)
t = 1.1 / (5.0 / 4)
t = 0.88
Using a t-table with degrees of freedom (df) = 16 - 1 = 15 and α = 0.01, we find the critical value to be 2.947. Since the absolute value of the t-statistic (0.88) is less than the critical value (2.947), we fail to reject the null hypothesis. This means that there is not enough evidence to suggest that the percentage of wheat crop lost to hail in that county is different from the national mean of 11%.
Therefore, the answer is no, these data do not indicate that the percentage of wheat crop lost to hail in that county is different (either way) from the national mean of 11%.
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Question 2. A water tank has the shape of an inverted circular cone with base radius2mand height.4m. If water is being pumped into the tank at a rate of2 m3/min, find the rate at which the water level is rising when the water is3mdeep. (Volume of cone,V=31πr2h) Question 3. A street light is mounted at the top of a15fttall pole. A man6fttall walks away from the ole with a speed of5ft/secalong a straight path. How fast is the tip of his shadow moving when he is oft from the pole. (Hint: Use properties of similar triangles)
The rate at which the water level is rising when the water is 3m deep is 0.159 m/min. The rate at which the tip of his shadow is moving when he is 40ft from the pole is 3ft/sec. The volume of a cone is given by V = 1/3πr^2h.
We are given that the base radius is 2m and the height is 4m. We are also given that the rate at which water is being pumped into the tank is 2 m^3/min. We need to find the rate at which the water level is rising when the water is 3m deep.
To find the rate at which the water level is rising, we need to take the derivative of the volume with respect to time. This gives us:
dV/dt = (1/3)π(2r)(dr/dt)(4) + (1/3)π(2^2)(dh/dt)
We know that dV/dt = 2 and r = 2, so we can plug these values into the equation and solve for dh/dt:
2 = (1/3)π(2)(2)(dr/dt)(4) + (1/3)π(2^2)(dh/dt)
Solving for dh/dt gives us:
dh/dt = (6 - 4π(dr/dt))/(4π)
We are given that the water level is 3m deep, so we can plug this value into the equation for the volume of a cone and solve for r:
V = (1/3)πr^2h
3 = (1/3)πr^2(3)
r = √(3/π)
We can now plug this value of r into the equation for dh/dt and solve for dr/dt:
dh/dt = (6 - 4π(√(3/π))(dr/dt))/(4π)
Solving for dr/dt gives us:
dr/dt = (6 - 4π(dh/dt))/(4π√(3/π))
We can now plug this value of dr/dt back into the equation for dh/dt and solve for dh/dt:
dh/dt = (6 - 4π((6 - 4π(dh/dt))/(4π√(3/π))))/(4π)
Solving for dh/dt gives us:
dh/dt = 0.159 m/min
The street light is mounted at the top of a 15ft tall pole and the man is 6ft tall. The man is walking away from the pole with a speed of 5ft/sec along a straight path. We need to find the rate at which the tip of his shadow is moving when he is 40ft from the pole.
We can use the properties of similar triangles to relate the height of the pole, the height of the man, the distance of the man from the pole, and the length of the shadow. Let x be the distance of the man from the pole and y be the length of the shadow. Then we have:
15/x = 6/(x + y)
Cross-multiplying gives us:
15(x + y) = 6x
Simplifying gives us:
9x = 15y
Taking the derivative of both sides with respect to time gives us:
9(dx/dt) = 15(dy/dt)
We are given that dx/dt = 5ft/sec, so we can plug this value into the equation and solve for dy/dt:
9(5) = 15(dy/dt)
Solving for dy/dt gives us:
dy/dt = 3ft/sec
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find the remainder when the polynomial 7x^4 -3x is divided by x-1
The remainder when 7x⁴ - 3x is divided by x - 1 is 4.
Describe Pοlynοmial?knοwn as indeterminates) and cοefficients, which are cοmbined using the οperatiοns οf additiοn, subtractiοn, and multiplicatiοn. A pοlynοmial can have οne οr mοre variables, but each term in the pοlynοmial must have nοn-negative integer expοnents οn the variables. The degree οf a pοlynοmial is the highest pοwer οf its variables with a nοn-zerο cοefficient.
Fοr example, the pοlynοmial 3x² - 2x + 5 has a degree οf 2, with the term 3x² being the highest degree term. The cοefficient οf the term 3x^2 is 3, and the cοefficient οf the term -2x is -2.
Pοlynοmials are used in a variety οf mathematical applicatiοns, including algebra, calculus, and geοmetry. They are used tο represent mathematical functiοns, tο apprοximate cοmplex curves, and tο sοlve equatiοns. Sοme cοmmοn οperatiοns οn pοlynοmials include additiοn, subtractiοn, multiplicatiοn, divisiοn, and factοring.
Tο find the remainder when the pοlynοmial 7x⁴ - 3x is divided by x - 1, we can use pοlynοmial lοng divisiοn οr synthetic divisiοn.
7x³ + 7x² + 7x + 4
x - 1 | 7x⁴ + 0x³ - 3x² + 0x + 0
- (7x⁴ - 7x³)
7x³ - 3x²
- (7x³ - 7x²)
4x² + 0x
- (4x² - 4x)
4x
- (4x - 4)
4
Therefore, the remainder when 7x⁴ - 3x is divided by x - 1 is 4.
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BRAINLIEST. Can someone please answer all the question in the picture below. BRAINLIEST.
Answer: B' is (1, -2)
Step-by-step explanation:
Point B is (5, 1), so subtract 4 from 5 and subtract 3 from 1 so,
5 - 4 = 1
1 - 3 = -2
B' is (1, -2)
Hope this helps!
please answer this fast
Answer:
p^(2(s-t)^2)/(s+t)
Step-by-step explanation:
We can simplify this expression by using the properties of exponents:
((p^r)/(p^s))^(r+s) ((p^2)/(p^t))^(s+t) ((p^t)/(p^r))^(r+t)
= (p^(r+s-s))^r (p^(2s-2t))^s (p^(t-r+r))^t / (p^(r+s-r))^r (p^(2t-2s))^s (p^(r-t+t))^t
= p^r p^(2s-2t)s p^t / p^r p^(2t-2s)s p^t
= p^r / p^r * (p^(2s-2t))^(s/(s+t)) / (p^(2t-2s))^(s/(s+t))
= p^r / p^r * p^((2s-2t)s/(s+t)) / p^((2t-2s)s/(s+t))
= p^0 * p^(2s^2-2st-2ts+2t^2)/(s+t)
= p^(2s^2-2st-2ts+2t^2)/(s+t)
= p^(2(s-t)^2)/(s+t)
Therefore, ((p^r)/(p^s))^(r+s) ((p^2)/(p^t))^(s+t) ((p^t)/(p^r))^(r+t) simplifies to p^(2(s-t)^2)/(s+t).
Taxi driver, travels for 4 5/8 miles to his first stop. he travels 1 3/4 miles less to his second stop. how many miles does the taxi driver will travel for the two stops?
The total distance traveled by the taxi driver is 7 1/2 miles.
How many miles does the taxi driver travel for the two stops?To find out how many miles the taxi driver travels for the two stops, we need to add up the distance to the first stop and the distance to the second stop.
The distance to the first stop is 4 5/8 miles.
To find the distance to the second stop, we need to subtract 1 3/4 miles from the distance to the first stop:
4 5/8 miles - 1 3/4 miles = 2 7/8 miles
Now we can add the distance to the first stop and the distance to the second stop to find the total distance traveled:
4 5/8 miles + 2 7/8 miles
= 7 1/2 miles
Therefore, the taxi driver will travel 7 3/2 miles for the two stops.
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Knowledge Check Questior Write an equation in slope-intercept form for the line with slope (2)/(3) and y-intercept -6.
The equation in slope-intercept form for the line with slope (2)/(3) and y-intercept -6 is:
y = (2) / (3)x - 6.
The equation in slope-intercept form for a line is y = mx + b, where m is the slope and b are the y-intercept. Since the slope is (2)/(3) and the y-intercept is -6, we can substitute these values into the equation to get:
y = (2)/(3)x + (-6)
Simplifying this equation gives us:
y = (2)/(3)x - 6
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a. Simplify the polynomial expressions and write in standard form. b. Classify by degree and number of terms. 1. \( a^{3}\left(a^{2}+a+1\right) \) 2. \( \left(3 x^{2}-4 x+3\right)-(4 x-10) \) a. i b.
polynomial expression of degree 2 with 3 terms.
a. i. \( a^{3}\left(a^{2}+a+1\right) = a^{5}+a^{4}+a^{3} \)
ii. \( \left(3 x^{2}-4 x+3\right)-(4 x-10) = 3 x^{2}-7 x-7 \)
b. i. \( a^{5}+a^{4}+a^{3} \) is a polynomial expression of degree 5 with 3 terms.
ii. \( 3 x^{2}-7 x-7 \) is a polynomial expression of degree 2 with 3 terms.
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In the inequality 3>2,if you mulutiply boyh sides by a positive number do you have to reverse the direction of the inequity sign
Multiplying or dividing both sides by a positive number leaves the inequality symbol unchanged.
The inequality symbols and > are defined in this pamphlet, along with examples of how to work with expressions containing them.
The following guidelines should be followed when changing or rearranging statements that involve inequalities:
Rule 1: An inequality symbol remains unchanged when the same amount is added to or subtracted from both sides.
Rule 2: Adding or subtracting a positive number from both sides does not change the inequality symbol.
Rule 3: Reversing the inequality by multiplying or dividing both sides by a negative number. It follows that changes to > and vice versa.
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Hey, guys-is this a function? Can you also please explain why with your answer? Thank you for your help, been a long day.
Yes, the graph represents a function.
What is a function?A relation is a function if it has only One y-value for each x-value.
The given ordered pairs from the given graph are (-7, 3), (-3, -3), (0,1), (2, 4), (3, -1), (5, -6)
The given graph represents a relation.
Since each value of x has unique y value.
So the given graph represents a function.
Hence, yes the graph represents a function.
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Use a calculator to approximate the measure of the acute angle A to the nearest tenth of a degree. sin A = 0.9659
a. 60.3 Degrees
b. 56 Degrees
c. 75 Degrees
d. 55.5 Degrees
Answer:
OPTION C
Step-by-step explanation:
There are 3 sides in a triangle. 2 of them are legs, and one of them is the Hypotenuse. "Sin" refers to Opposite/Hypotenuse.
To find A given a sine value, we must use inverse sin. I would suggest using desmos for this, but you need to switch to degrees in the online caluclator.
So the Equation is: [tex]sin^{-1} (0.9659)[/tex]
After plugging that into desmos, we get 74.994 degrees. Because that is not one of the answer, I'm assuming we must round our answer to the nearest whole number. In that case, your answer is 75 degrees, or OPTION C
help please!!!!!!!!!!!!!
Answer:
Step-by-step explanation:
A line that is parallel to the first line will have the same slope, so:
m = -3
X1 and y1 are basically the coordinates where the new line intersects, which is x1 = -1, and y1 = 6
Point-slope form:
y - 6 = -3(x - (-1))
y-6 = -3(x+1)
Slope-intercept form:
y - 6 = -3x - 3
y = -3x + 3
Hope this helps!
Answer:
Step-by-step explanation:
(-1,6) + (-3x + 4) = (-4x,10). I don't know if this is really correct but that's all that I really know how and what to do, so I hope I at least kind of helped a little bit.
Need to know what matches with what and showing how you got the answer. Thanks.
Answer:
1-B
2-E
3-D
4-A
5-C
Step-by-step explanation:
-4x + 3y = 3
3y = 4y + 3
y = 4/3 y + 1 => slope is 4/3, y-intercept is (0,1)
Equation 1 matches with Letter B
12x - 4y = 8
4y = 12x - 8
y = 3x - 2 => slope is 3, y-intercept is (0,-2)
Equation 2 matches with Letter E
8x + 2y = 16
2y = -8x + 16
y = -4x + 8 => slope is -4, y-intercept is (0,8)
Equation 3 matches with Letter D
-x + 1/3 y = 1/3
1/3 y = x + 1/3
y = 3x + 1 => slope is 3, y-intercept is (0,1)
Equation 4 matches with Letter A
-4x + 3y = -6
3y = 4x = -6
y = 4/3 x - 2 => slope is 4/3, y-intercept is (0,-2)
Equation 5 matches with Letter C
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FIND THE GREATEST COMON FACTOR AND THE LEAST COMON MULTIPLE FOR 12,18,24
Answer: LCM is 72. GCF is 6.
1. Find the center of mass of the solid bounded by x = y 2 and the planes x = z, z = 0, and x = 1 if the density is rho(x, y, z) = k ∈ R is constant
2. The electric charge distributes over the disk x 2 + y 2 ≤ 1 such that the charge density at any point (x, y) is rho(x, y) = x + y + x 2 + y 2 (in coulombs per square meter). Find the total charge Q on the disk.
3. Find the center of mass of the triangular region with vertices (0, 0), (2, 0) and (0, 2) if the density is given by rho(x, y) = 1 + x + 2y
1) The center of mass of the solid bounded by x = y^2 and the planes x = z, z = 0, and x = 1 the center of mass of the solid is (1/3, 2/15, 1/3). 2) The total charge on the disk is 4/3 coulombs. 3) The center of mass of the triangular region is (2/3, 2/3).
Center of Mass = (∫xyzρdV)/(∫ρdV).
Here, V is the volume of the solid. Since the density is constant, we can pull it out of the integral:
Center of Mass = k*(∫xyzdV)/(∫dV).
We can now use the volume formula for the solid which is V = ∫xyzdxdyz. Plugging this in the above formula, we get:
Center of Mass = k*[(∫x∫ydxdyz)/(∫dxdyz)]
Evaluating the integrals, we get the x coordinate of the center of mass to be (1/3), the y coordinate to be (2/15) and the z coordinate to be (1/3). Thus, the center of mass of the solid is (1/3, 2/15, 1/3).
2. To find the total charge Q on the disk x^2 + y^2 ≤ 1 such that the charge density at any point (x, y) is rho(x, y) = x + y + x^2 + y^2 (in coulombs per square meter), we need to use the following formula:
Q = ∫∫rho(x, y)dxdy
Evaluating the integral, we get Q = (1/3) + (1/3) + (1/3) + (1/3) = 4/3. Thus, the total charge on the disk is 4/3 coulombs.
3. To find the center of mass of the triangular region with vertices (0, 0), (2, 0) and (0, 2) if the density is given by rho(x, y) = 1 + x + 2y, we need to use the following formula:
Center of Mass = (∫xyρdA)/(∫ρdA).
Here, A is the area of the triangle. Evaluating the integral, we get the x coordinate of the center of mass to be (2/3) and the y coordinate to be (2/3). Thus, the center of mass of the triangular region is (2/3, 2/3).
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The net of a square pyramid is shown below: Net of a square pyramid showing 4 triangles and the square base. The square base has side lengths of 2 inches. The height of each triangle attached to the square is 3 inches. The base of the triangle is the side of the square. What is the surface area of the solid? (5 points) 16 square inches 24 square inches 28 square inches 32 square inches
4(3)(2)/2 + 2² = 12 + 4 = 16
Find three consecutive integers such that the third integer is equal to twice the first increased by five.
Answer:
Let's call the first of the three consecutive integers "x".
According to the problem, the third integer (which is the one after the first two) is equal to twice the first increased by five. We can express this algebraically as:
third integer = 2x + 5
Since the three integers are consecutive, the second integer must be one more than the first, and the third must be one more than the second. So, the second integer can be expressed as:
second integer = x + 1
And the third integer is:
third integer = (x + 1) + 1 = x + 2
Now we can set these two expressions for the third integer equal to each other, since they both represent the same value:
2x + 5 = x + 2
Simplifying and solving for x, we get:
x = -3
So the first of the three consecutive integers is -3. The second is one more than the first, which is -3 + 1 = -2. And the third is one more than the second, which is -2 + 1 = -1. Therefore, the three consecutive integers are -3, -2, and -1.
the volume of a cylinder is 1078 cm3 and it's height 7cm find the radius of the base
Answer:
r=7
Step-by-step explanation:
Cylinder Area
= πr² x h
1078 = 22/7 x r² x 7
1078/22 = r²
49=r²
r=7
The figure is shown composed of a rectangle and a hexagon. The length of each side of the hexagon is 2 cm determine the area of the shaded region.
The answer of the given question based on the rectangle and a hexagon , the area of the shaded region is approximately 10.51 cm².
What is Area?Area is measure of size of two-dimensional surface or shape, like a square, circle, or triangle. It is typically expressed in square units, like square meters (m²) or square feet (ft²).
To find the area of the shaded region in the figure, we need to find the area of the rectangle and the area of the hexagon, and then subtract the area of the hexagon from the area of the rectangle.
The rectangle has a length of 8 cm and a width of 2 cm, so its area is:
A(rectangle) = length x width = 8 cm x 2 cm = 16 cm²
The hexagon has a side length of 2 cm, so we can divide it into 6 equilateral triangles with side length 2 cm. Each of the triangles has area of an;
A(triangle) = (sqrt(3)/4) x side² = (sqrt(3)/4) x 2² = (2sqrt(3))/4 = sqrt(3)/2
The area of the hexagon is therefore:
A(hexagon) = 6 x A(triangle) = 6 x sqrt(3)/2 = 3sqrt(3)
A(shaded) = A(rectangle) - A(hexagon) = 16 cm² - 3sqrt(3) cm² ≈ 10.51 cm²
Therefore, the area of the shaded region is approximately 10.51 cm².
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Jeremiah and his brother are having a competition to see how many vegetables they can eat in a week. Jeremiah’s mom is rewarding the brothers for their efforts: at the end of the week, she’s going to give them an amount of prize money that is 4 times the sum of the number of vegetables they each eat. By the end of the week, Jeremiah had eaten 15 servings of vegetables. His mom paid him and his brother $100 Who ate more vegetables, Jeremiah or his brother? By how many?
Answer:
Jeremiah ate more, by 5 servings more
Step-by-step explanation:
$100 is 4 x number of vegetable servings
100/4 = 25 number of total servings
If Jeremiah ate 15 servings, his brother ate 25-15 =10
Servings Jeremiah 15, brother 10
Plot the following points on the coordinate gria: A(0,-3),B(-2,0),C(-1,4),D(3,-4)
Answer:
See graph below
Step-by-step explanation:
You start at the origin (0,0). The first number in the ordered pair tells you to go right or left. If the number is positive you go to the right. If the number is negative, you go to the left.
Next, you go up or down. If the number is positive, you go up and if the number is negative you go down. At that spot, you plot your point.
Helping in the name of Jesus.
The plot of the given points on the coordinate grid is shown
To plot the given points on the coordinate grid, follow these steps:
1. Start with point A(0,-3). This point has an x-coordinate of 0 and a y-coordinate of -3. To plot this point, start at the origin (0,0) and move 3 units down on the y-axis. Mark this point with a dot and label it as point A.
2. Next, plot point B(-2,0). This point has an x-coordinate of -2 and a y-coordinate of 0. To plot this point, start at the origin (0,0) and move 2 units to the left on the x-axis. Mark this point with a dot and label it as point B.
3. Now, plot point C(-1,4). This point has an x-coordinate of -1 and a y-coordinate of 4. To plot this point, start at the origin (0,0) and move 1 unit to the left on the x-axis and 4 units up on the y-axis. Mark this point with a dot and label it as point C.
4. Finally, plot point D(3,-4). This point has an x-coordinate of 3 and a y-coordinate of -4. To plot this point, start at the origin (0,0) and move 3 units to the right on the x-axis and 4 units down on the y-axis. Mark this point with a dot and label it as point D.
So, the plot of the given points on the coordinate grid is shown above.
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#19 F.1
Match each function on the left with the ordered pairs on the right.
y = -8x + 2
y = -4x + 2.
y = 7x + 7.
y = -7x 5.
-
• (-4, 23)
(-9, 74)
(2,-6)
• (9, 70)
The correct match of each ordered pair with each function is:
(-9, 74) for y = -8x + 2
(2,-6) for y = -4x + 2
(9, 70) for y = 7x + 7
(-4, 23) for y = -7x - 5
How to Match a Function with its Ordered Pair?To match each function with the correct ordered pair, we need to substitute the x-values from the ordered pairs into each function and see which one gives the corresponding y-value.
Substitute the x value of (-9, 74) into y = -8x + 2:
y = -8(-9) + 2
y = 74
Substitute the x value of (2,-6) into y = -4x + 2:
y = -4(2) + 2
y = -6
Substitute the x value of (9, 70) into y = 7x + 7:
y = 7(9) + 7
y = 70
Substitute the x value of (-4, 23) into y = -7x - 5:
y = -7(-4) - 5
y = 23
Therefore, the correct matching is:
(-9, 74) for y = -8x + 2
(2,-6) for y = -4x + 2
(9, 70) for y = 7x + 7
(-4, 23) for y = -7x - 5
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A researcher found that for the years 2013 to 2019, the equation,
y=-0.4(x-3)2 +42) models the average gas mileage of new vehicles sold in
Switzerland, where is the number of years since 2013 and is the average gas
mileage, in miles per gallon (mpg).
During what year was the average gas mileage for new vehicles sold in Switzerland
the greatest?
Using equation of parabola in vertex form the year in which the average gas mileage for new vehicles sold in Switzerland the greatest is 2016.
What is the equation of a parabola in vertex form?The equation of a parabola with vertex (h, k) is given by
y = a(x - h)² + k
Now a researcher found that for the years 2013 to 2019, the equation, y = -0.4(x - 3)² + 42 models the average gas mileage of new vehicles sold in Switzerland, where is the number of years since 2013 and is the average gas mileage, in miles per gallon (mpg).
To determine during what year was the average gas mileage for new vehicles sold in Switzerland the greatest, we notice that the equation is the equation of a parabola in vertex form where (h, k) is the vertex.
Comparing y = a(x - h)² + k with y = -0.4(x - 3)² + 42 we have that
a = -0.4, h = 3 and k = 42
So, the vertex is at (h, k) = (3, 42)
Since a = -0.4 < 0, (3,42) is a maximum point
So, y is maximum when x = 3
Since this is 3 years after 2013 which is 2013 + 3 = 2016.
So, the year in which the average gas mileage for new vehicles sold in Switzerland the greatest is 2016.
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math help someone pls answer 7thgrade math question
Answer:
128
Step-by-step explanation:
Answer: 128
Step-by-step explanation:
Remember the order of operations in this problem:
8² x (2 + 6) / 4
8² x (8) / 4
64 X 8 /4
512 / 4
= 128
Hope this helps!
Which measurements could represent the side lengths in feet of a right triangle?
14 ft, 14 ft, 14 ft
10 ft, 24 ft, 26 ft
3 ft, 3 ft, 18 ft
2 ft, 3 ft, 5 ft
Option 4: 2 feet, 3 feet, and 5 feet – constitutes a right angle since 2² + 3² = 4 + 9 = 13 and 13 = 5², making it.
What is a Class 7 triangle?A triangle is a geometry with three vertices and three sides. The internal angle of the triangle, which really is 180 degrees, is built. The inner triangle angles are implied to sum to 180 degrees. It has the fewest sides of any polygon.
The Pythagorean theorem states that the square of a hypotenuse's length (the side exact reverse the right angle) in a right triangle is the product of a squares of the durations of the remaining two sides. Only the last option—2 feet, 3 feet, and 5 feet—can represent the second derivative of a right triangle because it satisfies this requirement.
Let's check each option:
Option 1: 14 feet, 14 feet, 14 feet - As all three are equal, this doesn't qualify as a right triangle and the Pythagoras theorem cannot be met.
Option 2: 10 feet, 24 feet, and 26 feet - Because 10² + 24² = 100 + 576 = 676, which is equivalent to 26², this is a right triangle. The fact that this option is a multiple of the well-known Polynomial triple (3, 4, and 5) implies that we can scale all of the corresponding sides by a common factor to produce an infinite number of right triangles with all these side lengths. As a result, this option doesn't really represent an original right triangle.
Option 3: 3 ft, 3 ft, 18 ft - This does not constitute a right triangle because the cube of the hypotenuse's length (18² = 324) does not equal the total of the squares of a shorter side (3² + 3² = 18).
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Answer:
2 feet, 3 feet, and 5 feet
Step-by-step explanation:
got it right on my test