The point (x, y) on the unit circle that corresponds to the real number t = 5π/6 is (-√3/2, 1/2).
The point (x, y) on the unit circle that corresponds to the real number t can be found using the following equations:
x = cos(t)
y = sin(t)
Since t = 5π/6, we can plug this value into the equations to find x and y:
x = cos(5π/6) = -√3/2
y = sin(5π/6) = 1/2
Therefore, the point (x, y) on the unit circle that corresponds to the real number t = 5π/6 is (-√3/2, 1/2).
Note: The unit circle is a circle with a radius of 1 that is centered at the origin (0, 0) of the coordinate plane. The x-coordinate of a point on the unit circle corresponds to the cosine of the angle formed by the positive x-axis and the radius connecting the origin to the point, while the y-coordinate corresponds to the sine of this angle.
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The members of a cooking club are making cakes, which they will sell at a street fair for $8 apiece. It cost $20 for a booth at the fair, and the ingredients for each cake cost $6. At some point, the club members will sell enough cakes so that their sales cover their expenditures. How much will the sales and expenditures be? How many cakes will they have sold?
a) The sales of the cooking club will be $80, while the expenditures will be $80 when the number of cakes sold will cover their expenditures (break-even point).
b) The number of cakes that the members of the cooking club will sell at the street fair at this point (break-even point) is 10.
What is the break-even point?The break-even point is the sales units that will equate to the expenditures.
At the break-even point, there is no profit or loss because the total sales revenue equals the total costs (fixed and variable).
The selling price per unit = $8
The fixed cost for a booth at the fair = $20
The variable cost price per unit = $6
Contribution margin per unit = $2 ($8 - $6)
The break-even point in units = Fixed Cost/Contribution margin per unit
= 10 units ($20/$2)
Total sales revenue at the break-even point = $80 ($8 x 10)
Total variable cost = $60 ($6 x 10)
Total fixed and variable costs = $80 ($20 + $60)
Thus, at the break-even point, the cooking club will have sold 10 units making revenue to equal the total costs.
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A concrete pillar has the shape of a cylinder. It has a diameter of 12 meters and a height of 4 meters. If concrete costs $82 per cubic meter, how much did the concrete cost for the pillar?
Use 3.14 for /pi, and do not round your answer.
The concrete cost for the pillar was $37,879.52.
Velocity is a quantity that indicates how quickly and in which direction a point is moving. A point always moves in a direction that is tangent to its path; for example, a circular path's direction at any instant is perpendicular to a line connecting the point to the circle's centre (a radius). The magnitude of the velocity (or speed) is the rate at which the point moves along its path in time.
If a point moves a certain distance along its path in a given time interval, its average speed is equal to the distance moved divided by the time taken. A train travelling 100 kilometres in two hours, for example, has an average speed of 50 kilometres per hour.
The cylinder's radius is equal to its diameter divided in half, or 12/2, or 6 metres.
The cylinder's volume is determined by:
[tex]V = pi * r^2 * h[/tex]
[tex]V = 3.14 * 6^2 * 4[/tex]
V equals 452,16 cubic metres
The price of the concrete is $82 per cubic metre, making the overall price:
$82 * 452.16 = $37,879.52
Hence, the pillar's concrete expense came to $37,879.52.
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How can I find the zero while factoring for the equation I circled?
Answer:
Below
Step-by-step explanation:
x^2 -x + 1 Use Quadratic Formula a = 1 b = -1 c = 1
to find zeroes 1/2 ± i sqrt(3) / 3
Sooo.... Not sure you could find it by factoring:
(x -1/2 +i sqrt(3) /2) (x - 1/2 - i sqrt (3)/2) would be hard to see !!
Construct a box plot from the given data. Scores on a statistics test: 83,72,91,73,74,51,62,52,76,93
Box plot of the given data for the scores of the statistics is represented by minimum value = 51, maximum value = 93, Median = 75, lower quartile = 67 and upper quartile = 87.
Box plot is attached.
Scores of the statistics test is equal to
83,72,91,73,74,51,62,52,76,93
Arrange the scores into ascending order we get,
51, 52, 62, 72, 73, 74, 76, 83, 91, 93
Minimum value = 51
Maximum value = 93.
Median= Average of the two middle values.
Two middle values are 74 and 76
Median
= (74 + 76) / 2
= 75
Lower quartile = Median of the lower half of the data
Upper quartile = Median of the upper half of the data
Lower half= 51, 52, 62, 72, 73
Upper half = 76, 83, 91, 93
Lower quartile
= (62 + 72) / 2
= 67
Upper quartile
= (83 + 91) / 2
= 87
Constructed box plot is attached.
Therefore, to construct box plot minimum value = 51, maximum value = 93, Median = 75, lower quartile = 67 and upper quartile = 87 for the given test scores.
Box plot is attached.
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Today, a tennis racket regularly priced at $120 is on sale for 25% off. If HST is 13%, calculate the after-tax cost of the tennis racket.
The after-tax cost of the tennis racket is $101.70.
To calculate the after-tax cost of the tennis racket, we first need to find the sale price of the racket, then add on the HST.
Step 1: Find the sale price of the racket. To do this, we need to find 25% of $120, then subtract that amount from the original price.
25% of $120 = 0.25 × $120 = $30
Sale price = $120 - $30 = $90
Step 2: Add on the HST. To do this, we need to find 13% of the sale price, then add that amount to the sale price.
13% of $90 = 0.13 × $90 = $11.70
After-tax cost = $90 + $11.70 = $101.70
Therefore, the after-tax cost of the tennis racket is $101.70.
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PLEASE HELP WITH THESE 4 QUESTIONS!!! 70 POINTS!!!
Answer:
1: x=2
Step-by-step explanation:
Do you know the pythagorean theorem?
a2 + b2 = c2
1) We will square all the sides:
2[tex]\sqrt{2}[/tex] -squared- 2(4)=8
x squared= [tex]x^{2}[/tex]
[tex]x^{2} +x^{2} =2x^{2} =8[/tex]
[tex]2x^{2} =8[/tex]
[tex]x^{2} =4[/tex]
x=2
2: [tex]\sqrt{3}[/tex] we will square to make 3
same with x to [tex]x^{2}[/tex]
and y to [tex]y^{2}[/tex]
3+[tex]x^{2}[/tex]=[tex]y^{2}[/tex]
Since the ratio of the sides is 1: 2: 3
Imma continue typing later srry gtg
Summary
Describe the relationship that exists between the independent and dependent variables for a relationship that
has a negative slope.
The two variables move in opposite directions.
What is a linear relationship?For a relationship that has a negative slope, there is an inverse relationship between the independent and dependent variables. This means that as the value of the independent variable increases, the value of the dependent variable decreases, and vice versa. In other words, the two variables move in opposite directions.
For example, suppose we have a dataset that shows the relationship between the number of hours of study and the score on a test.
If the slope of the line of best fit is negative, this means that as the number of hours of study increases, the score on the test decreases. This negative relationship indicates that the more time a student spends studying, the lower their score on the test is likely to be.
It is important to note that a negative slope does not necessarily imply a causal relationship between the variables. There may be other factors that affect the relationship between the variables, and further analysis is needed to determine the nature of the relationship.
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Find the domain and range of the function. (Enter your answers using interval notation.) f(x) = 9x² + 1
In interval notation, the domain and range of the function are:
Domain: (-∞, ∞)
Range: [1, ∞)
The domain of a function is the set of all possible values of x that can be plugged into the function. The range of a function is the set of all possible values of f(x) that can be obtained by plugging in values of x into the function.
For the given function f(x) = 9x² + 1, the domain is all real numbers, because any value of x can be plugged into the function. Therefore, the domain is (-∞, ∞).
The range of the function is the set of all possible values of f(x) that can be obtained by plugging in values of x into the function. Since the function is a quadratic with a positive leading coefficient (9), the graph of the function will be a parabola that opens upward. The minimum value of the function will occur at the vertex of the parabola, which is (0, 1). Therefore, the range of the function is [1, ∞).
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2. If asked to provide an average of these data: for reservoir simulation grid block, or, • for comparison with a well test? What would you need to consider? The variation of data with depth is given below. -3834 -3835 -3836 Core depth (m) -3837 -3838 -3839 -3840 10 15 25 20 Porosity (%) 30 -3834 -3835 -3836 Core depth (m) -3837 -3838 -3839 : -3840 0 100 200 300 400 500 Horizontal Permeability (mD) 600
You can calculate the average value of the data set by summing all the data points and dividing by the number of data points. This will give you the average value of the data set for the reservoir simulation grid block or for comparison with a good test.
To provide an average of the given data for reservoir simulation grid block or for comparison with a well test, you would need to consider the following factors:
The range of data: You need to consider the range of data, from the minimum to the maximum value, to determine the average value of the data set.
The number of data points: You also need to consider the number of data points in the data set, as this will affect the calculation of the average value.
The type of data: You need to consider the type of data, whether it is porosity or horizontal permeability, as this will affect the calculation of the average value.
The variation of data with depth: You need to consider the variation of data with depth, as this will affect the calculation of the average value.
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Jody wants to beiges an exercise program she is required to walk 25 miles per week. If she walk 4.5 miles each day on Monday Tuesday Wednesday Friday and 3.5 miles on Saturday how far must she walk on Sunday to reach her goal
Jody needs to walk 3.5 miles on Sunday to reach her goal.
What is Multiplication?
Multiplication is a mathematical operation that combines two or more numbers to produce a result called the product. It is a repeated addition of the same number.
To reach her goal of 25 miles per week, Jody would have already walked a total of:
4.5 miles/day x 4 days = 18 miles
3.5 miles on Saturday = 3.5 miles
The total distance walked from Monday to Saturday is:
18 + 3.5 = 21.5 miles
To reach her goal of 25 miles per week, she needs to walk an additional:
25 - 21.5 = 3.5 miles
Therefore, Jody needs to walk 3.5 miles on Sunday to reach her goal.
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A 1.5 liter (1500ml) bottle of soda will make about ? servings of 0.25 liter (250ml).
The number of servings that a 1.5 liter (1500ml) bottle of soda will make is 6 servings of 0.25 liter (250ml).
To find the number of servings, you can divide the total volume of the bottle by the volume of each serving.
Step-by-step explanation:
1. Convert the volume of the bottle to milliliters: 1.5 liters = 1500 milliliters
2. Convert the volume of each serving to milliliters: 0.25 liters = 250 milliliters
3. Divide the total volume of the bottle by the volume of each serving: 1500 milliliters / 250 milliliters = 6 servings
Therefore, a 1.5 liter (1500ml) bottle of soda will make about 6 servings of 0.25 liter (250ml).
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Find the slope of each line defined below and compare their values.
Equation of Line A:
y-1=
-1/2 (2
(x + 10)
-
Select values from Line B:
The slope of Line A is
of Line A is
X
-10
-5
0
5
Y
-3
0
3
6
and the slope of Line B is
the slope of Line B.
Therefore the slope
The slope of line A is -1/2 and the slope of line B is -3/5. The slope of line A is greater than the slope of line B.
What is slope?
A line's steepness and direction are measured by the line's slope. Without actually using a compass, determining the slope of lines in a coordinate plane can assist in forecasting whether the lines are parallel, perpendicular, or none at all.
First, let's rewrite the equation of line A in slope-intercept form (y = mx + b) where m is the slope and b is the y-intercept -
y - 1 = - 1/2(x + 10)
y = 1/2(x + 10) + 1
y = 1/2x + 6
So, the slope of line A is - 1/2.
For line B, we can use the formula for finding the slope of a line given two points (m = (y2 - y1) / (x2 - x1)).
Let's use the first and last points to find the slope -
m = (-3 - 6) / (-10 - 5) = -9 / -15 = 3/5
So, the slope of line B is 3/5.
Therefore, the slope of line B is smaller as compared to slope of line A.
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An angle measures 6° more than the measure of its supplementary angle. What is the measure of each angle?
The two supplementary angles where one angle measures 6° more than the other one are 87° and 93°.
What are supplementary angles?
Two angles are said to be supplementary if the sum of the two angles is 180 degrees. One way to avoid confusion in these definitions is to note that s comes after c in the alphabet and 180 is greater than 90.
Solution according to the information in the question:
Let, "x" be one of the two supplementary angles
then, the other angle will be "x+6" according to the question.
As we know sum of two supplementary angles is 180 degrees, so
x +(x+6)=180
⇒2x + 6 = 180
⇒2x = 180 - 6
⇒2x = 174
⇒x = 174/2
⇒x = 87°
∴ The other angle = x +6 = 87 +6 = 93°
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The measure of the angle being discussed is 84° and the measure of its supplementary angle is 96°. This is because the measure of the angle being discussed is 6° more than the measure of its supplementary angle.
What is a supplementary angle?A supplementary angle is two angles whose sum is 180 degrees. These angles do not have to be adjacent or even in the same plane, but their sum must always equal 180 degrees.
If the angle being discussed is 6° more than the measure of its supplementary angle, then the measure of the angle being discussed is 84° (180° - 6° = 84°). Therefore, the measure of the angle being discussed is 84° and the measure of its supplementary angle is 180° - 84° = 96°.
To further explain the relationship between the two angles, the supplementary angle is the measure of the angle that completes the 180° angle when combined with the angle being discussed. This means that the measure of the supplementary angle is the 180° minus the measure of the angle being discussed. In this case, the measure of the angle being discussed is 84° and thus, the measure of its supplementary angle is 180° - 84° = 96°.
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Math part 2 Question 1
Answer: [tex]x^{2}[/tex]+2x-5
Step-by-step explanation:
(g+f)(x) = g(x)+f(x)
g(x) = 2x-2
f(x) = [tex]x^{2}[/tex]-3
g(x)+f(x) = (2x-2) + ([tex]x^{2}[/tex]-3)
g(x)+f(x) = [tex]x^{2}[/tex]+2x-5
If 15 1/3z is equal to 5 what does z equal
Answer:
z=5/138
Step-by-step explanation:
15 1/3z=5
46/3z=5
3z=5/46
z=5/138
We know that (2 + 3) + 5 = 2 + (3 + 5) and 2 * (3 * 5) = (2 * 3) * 5. The
grouping with parentheses does not affect the value of the expression.
Is this true for exponents? That is, are the numbers below equal?
2(34) and (23)5
If not, which is bigger? Which of the two would you choose as the meaning of the following expression?
235
Explain your reasoning.
Answer:
Step-by-step explanation:
Chuck's family traveled
7
10
of the distance to his grandfather’s house on Saturday. They traveled
2
3
of the remaining distance on Sunday. What fraction of the total distance to his grandfather’s house was traveled on Sunday?
Answer:
2/10
Step-by-step explanation:
7/ 10 of the distance on Saturday
Remaining distance is 3/10
2/3 of remaining distance is 2/3 x 3/10 = 2/10
Saturday 7/10
Sunday 2/10
Please write a proof for this question.
And may you write with a proof for:
A(n) to be the arithmetic mean of the (positive) factors of n.
For which n is A(n) = 124?
Which n is equal to 427. I need the proof for the question
427.
The proof for the question is as follows:
A(n) is the arithmetic mean of the (positive) factors of n.
We want to find the n for which A(n) = 124.
Let F be the set of (positive) factors of n, and let f1, f2,..., fm be the elements of F.
The arithmetic mean of F is defined as A(n) = (f1 + f2 + ... + fm)/m.
Now, we have A(n) = 124. So, 124 = (f1 + f2 + ... + fm)/m.
Therefore, 124m = f1 + f2 + ... + fm.
This implies that f1 + f2 + ... + fm = 124m = 427.
Thus, n = 427.
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A worker uses 450 inches of steel wire to make 300 springs of the same size. At this rate how many inches of steel wire are needed to make 1 spring?
Answer:
1.5 inches of stell will make 1 spring
Step-by-step explanation:
If 450 inches of steel are used to make 300 springs, we can simply divide the inces by the spring count to obtain a unit of inches/(1 spring).
(450 inches of steel)/(300 springs) = (1.5 inches of steel)/)1 spring)
(first question ever) what is the area of the gray rectangle?
Answer:6
Step-by-step explanation:
the perimeter of the orange square is 18
4+4+5+5=18
3+3=6
18-6=12
12/2=6
6+6=12
3+3=6
6+12=18
18=18
Given that △A′B′C′ is a dilation of △ABC, how are the angles and side lengths of the preimage and image related?
The angles are proportional and the side lengths are proportional.
The angles are congruent and the side lengths are congruent.
The angles are proportional and the side lengths are congruent.
The angles are congruent and the side lengths are proportional.
Answer:
Step-by-step explanation:
b because i did it
iden (t)/(P)layerHomework. aspx? homew Multiply using the rule for the square of a (x+5)^(2)
The result of multiplying (x+5)^(2) using the rule for the square of a binomial is x^(2) + 10x + 25.
To multiply using the rule for the square of a binomial, we can use the formula (a+b)^(2) = a^(2) + 2ab + b^(2). In this case, a = x and b = 5, so we can plug these values into the formula:
(x+5)^(2) = (x)^(2) + 2(x)(5) + (5)^(2)
Simplifying the right side of the equation gives us:
(x+5)^(2) = x^(2) + 10x + 25
Therefore, the result of multiplying (x+5)^(2) using the rule for the square of a binomial is x^(2) + 10x + 25.
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Can I please get some help with this?
To run 6 miles it takes 2880 seconds of time.
What is the speed?The speed formula can be defined as the rate at which an object covers some distance. Speed can be measured as the distance travelled by a body in a given period of time. The SI unit of speed is m/s.
Given that, a runner records his rate of speed along the first mile of a 6 mile path that winds through the park.
We know that, speed =Distance/Time
Here, Distance= 1/4 mile and time=120 seconds
Speed = 1/4 ÷120 =1/480 miles per seconds
Time taken to run 6 miles
We know that, Time =Distance/Speed
Time = 6 ÷ 1/480
= 6×480
= 2880 seconds
Therefore, to complete 6 miles it takes 2880 seconds.
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Find the area bounded by the following: 1. y = √9 – x, y = √9 - 3x , and the x-axis 2. y = x^3 and y = 4x^2 3. x = y^2 and x^2 – 2x + 3y = 2 4. x^2 + y^2 = 9, the x-axis , the y-axis
√9 - 3x⁄x + 4x2 - x3⁄2 + y2 - 2xy + 2⁄2 + 9 - x2⁄2 from 0 to √9
To find the area bounded by the given functions, we will need to solve the following integrals:
1. Integral of √9 - 3x⁄x from 0 to √9
2. Integral of 4x2 - x3⁄2 from 0 to √9
3. Integral of y2 - 2xy + 2⁄2 from 0 to √9
4. Integral of 9 - x2⁄2 from 0 to √9
The area bounded by the given functions is then equal to the sum of the four integrals, or:
Area = √9 - 3x⁄x + 4x2 - x3⁄2 + y2 - 2xy + 2⁄2 + 9 - x2⁄2 from 0 to √9
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i need help answer plssd
The number representing the 6th grader participated in the field event is 120
What is a sample space?A sample space is a collection or a set of possible outcomes of a random experiment.
The sample space is represented using the symbol, “S”. The subset of possible outcomes of an experiment is called events.
Given is a graph, showing the number of class students taking parts in different events,
We need to find the number of the 6th graders who participated in field event.
The sample size is 20 for who participated in field event, that means one unit is representing 20 participants
The sample number for 6th graders who participated in field event = 6
That means, the total number of the 6th graders who participated in field event = 20 x 6 = 120
Hence, the number representing the 6th grader participated in the field event is 120
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The width of a poster board is 32 inches. Using scissors, you reduce the width of the poster board to 4 inches. What is the scale factor of the dilation?
8:1
2:4
1:8
8:32
Answer- 1:8
The original length of the board was 32 inches. Since it reduced we can divide 32 into 4. 32/4 is 8. This means that the scale factor of the dilation is 1:8. 32 is 8/1 of 4, so that means in ratio 1 whole is divided into 8 parts, hence 1:8.
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A wallet contains 23 bills. All the bills are 1 dollar bills and 5 dollar bills. There are 7 more 1 dollar bills than 5 dollars bills. How much money does the wallet contain
Answer: 55
Step-by-step explanation: 13 -7 = 16. 16/2 = 8. 8 + 7 = 15. 8 X 5 = 40
7. Six students said that their favorite music is Country Music.
What percent of students said that their favorite music is
Country music?
• Rap
Country
• Pop
Latin
Favorite Music Genre
12
90
6
6% of the students surveyed said that their favorite music is Country music. This may be due to its classic sound, relatable lyrics, and lifestyle connection.
What is number?Number is an abstract concept used to describe a quantity, or amount, of something. It is used in mathematics to quantify things, such as in counting, measuring, and representing data. Numbers are used to describe the size, quantity, or position of objects or people in space or time. They are also used to classify, classify, and identify items in a variety of fields. Numbers can be used to represent ideas and concepts, such as in equations, formulas, and other mathematical operations.
Six students represents 6 out of 100 students, so the percent of students who said that their favorite music is Country music is 6%. Rap, Pop, and Latin music each represent 12% of the students, for a total of 36%. The remaining 64% of the students may have chosen other genres, or did not answer the question.
The popularity of Country music among the students may have several explanations. First, Country music is often considered to be a classic genre, and the students may have grown up with the music and developed an appreciation for it. Second, many Country music songs have lyrics that are easy to relate to, which can resonate with the students. Finally, Country music is often associated with a certain lifestyle, and the students may be drawn to its image.
In conclusion, 6% of the students surveyed said that their favorite music is Country music. This may be due to its classic sound, relatable lyrics, and lifestyle connection.
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Ryder bought. 0. 75 pound of turkey and 0. 57 pound of cheese. Did he buy more turkey or cheese
Answer:
He bought more turkey
Step-by-step explanation:
Simple way is to check how close both numbers are to a whole number or convert to fraction
0.75 =75/100
0.57= 57/100
how do you simplify
Step-by-step explanation:
So, let's say that we have 5/20. 5 and 20 can divide by a similar number (5) so you divide each variable by 5. in the end, you get 1/4.