a soccar team spent $55 dollars on supplies for a car wash then earned $275 whats their total after paying for supplies
Find all solutions to the equation csc theta +sqrt2 = 0
The tables represent two linear functions in a system.
What is the solution to this system?
The solution to this system is (x, y) = (8, -22).
The y-values get closer together by 2 units for each 2-unit increase in x. The difference at x=2 is 6, so we expect the difference in y-values to be zero when we increase x by 6 (from 2 to 8).
You can extend each table after the same pattern.
In table 1, x-values increase by 2 and y-values decrease by 8.
In table 2, x-values increase by 2 and y-values decrease by 6.
The attachment shows the tables extended to x=10. We note that the y-values are the same (-22) for x=8 (as we predicted above). That means the solution is ...
... (x, y) = (8, -22)
Answer:
(8,-22)
Step-by-step explanation:
Table 1)
To form equation we will use two point slope form
[tex](x_1,y_1)=(-4,26)\\(x_2,y_2)=(-2,18)[/tex]
Formula :[tex]y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)[/tex]
Substitute the values :
[tex]y-26=\frac{18-26}{-2+4}(x+4)[/tex]
[tex]y-26=-4(x+4)[/tex]
[tex]y-26=-4x-16[/tex]
[tex]y=-4x-16+26[/tex]
[tex]y=-4x+10[/tex] ---1
Table 2)
To form equation we will use two point slope form
[tex](x_1,y_1)=(-4,14)\\(x_2,y_2)=(-2,8)[/tex]
Formula :[tex]y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)[/tex]
Substitute the values :
[tex]y-14=\frac{8-14}{-2+4}(x+4)[/tex]
[tex]y-14=-3(x+4)[/tex]
[tex]y-14=-3x-12[/tex]
[tex]y=-3x+2[/tex] ---2
Now we are supposed to solve 1 and 2
Substitute the value of y from 1 in 2
[tex]-4x+10=-3x+2[/tex]
[tex]8=x[/tex]
Substitute the value of x in 2
[tex]y=-3(8)+2[/tex]
[tex]y=-22[/tex]
Hence the solution to this system is (8,-22)
John has taken out a loan for college. He started paying off the loan with a first payment of $100. Each month he pays, he wants to pay back 1.1 times the amount he paid the month before. Explain to John how to represent his first 20 payments in sequence notation. Then explain how to find the sum of his first 20 payments, using complete sentences.
A store is selling two mixtures of coffee beans in one-pound bags. The first mixture has 12 ounces of Sumatra combined with 44 ounces of Celebes Kalossi, and costs $42. The second mixture has 44 ounces of Sumatra and 12ounces of Celebes Kalossi, and costs $30. How much does one ounce of Sumatra and one ounce of Celebes Kalossi cost?
what is the area of a circle with a radius of 7 inches
Answer is provided in the image attached.
486 is what percent of 900
Use rounding or compatible numbers to estimate sum 198+727
It is desired to estimate the mean gpa of each undergraduate class at a large university. assume that the variance of the gpas is 1.44. how large a sample is necessary to estimate the mean gpa within 0.25 at the 99% confidence level
To estimate the mean GPA of each undergraduate class at a large university within a margin of error of 0.25 at a 99% confidence level, approximately 187 samples are needed.
Explanation:To estimate the mean GPA of each undergraduate class at a large university within a margin of error of 0.25 at a 99% confidence level, we need to determine the required sample size. In this case, we can use the formula for sample size determination, which is:
n = (Z^2 * σ^2) / E^2
Where:
n is the required sample sizeZ is the Z-score associated with the desired confidence level (99% corresponds to a Z-score of approximately 2.58)σ^2 is the variance of the GPAs (given as 1.44)E is the desired margin of error (0.25)Plugging in the values, we get:
n = (2.58^2 * 1.44) / 0.25^2
n ≈ 186.43
Therefore, we need a sample size of approximately 187 to estimate the mean GPA within a margin of error of 0.25 at a 99% confidence level.
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Help Please question in the file.
you have 5 antiques and want to display 3 on a shelf. how many different 3 antique arrangements are possible
Sam is observing the velocity of a car at different times. After two hours, the velocity of the car is 50 km/h. After six hours, the velocity of the car is 54 km/h.
Part A: Write an equation in two variables in the standard form that can be used to describe the velocity of the car at different times. Show your work and define the variables used. (5 points)
Part B: How can you graph the equation obtained in Part A for the first seven hours? (5 points)
A pizza parlor sold 38 1/8 pizzas during a dinner hour. If each pizza contained 8 slices, how many slices of pizza were sold?
38*8 = 304
304 + 1 =305 slices were sold
solve for y 6y-8=3y-2
6y-8 =3y-2
subtract 3y from both sides
3y-8 = -2
add 8 to both sides
3y=6
y=6/3 =2
y = 2
The social studies teacher is giving a test worth 80 points, and containing 34 questions. There are 2 point and 4 point questions on the test. How many of each type of question are on the test? Show your work. A. List the two equations B. Find each type of question
How many positive integers not exceeding 1000 are not divisible by either 4 or 6?
There are 667 positive integers not exceeding 1000 that are not divisible by either 4 or 6.
Explanation:This is a question about number theory and involves the comprehension of divisibility. To identify the positive integers that are not divisible by either 4 or 6 and not exceeding 1000 is an application of the principle of inclusion and exclusion.
First, we need to figure out how many numbers up to 1000 are divisible by 4, which is 1000/4 = 250. Then, we look at how many numbers are divisible by 6, which is 1000/6 = about 166 (we only consider the whole numbers).
However, some numbers are divisible by both 4 and 6, so we have over-counted and need to correct for this. These would be the numbers divisible by the least common multiple (LCM) of 4 and 6, which is 12. There are 1000/12 = about 83 such numbers.
Thus, according to the principle of inclusion and exclusion, the total number of numbers divisible by 4 or 6 would be 250 + 166 - 83 = 333. The last step is to subtract this from the total number of integers from 1 to 1000, so the answer would be 1000 - 333 = 667.
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today there are 3,659 thousand elementary and secondary teachers employed in a certain country. this number is expected to increase to 3,856 thousand by next decade. what is the percent increase?
py+7=6y+q
what is the answer for this question (linear equations with unknown coefficients)?
Answer:
The required equation is [tex]y =\frac{(q-7)}{(p-6)}[/tex].
Step-by-step explanation:
Consider the provided equation.
[tex]py+7=6y+q[/tex]
We need to simplify the equation and convert it into a linear equation with unknown coefficients.
Subtract 6y from both sides.
[tex]py - 6y + 7 = q[/tex]
Subtract 7 from both sides.
[tex]py - 6y = q - 7[/tex]
Take y common from left side.
[tex]y(p-6) = q-7[/tex]
Divide both sides by p-6.
[tex]y =\frac{(q-7)}{(p-6)}[/tex]
Hence, the required equation is [tex]y =\frac{(q-7)}{(p-6)}[/tex].
To make the two triangles below similar, what would the values of x and y have to be?
A basket contains five apples and seven peaches. Four of the apples and two of the peaches are rotten. You randomly pick a piece of fruit. It is fresh or it is an apple. Find the probability of this occuring.
Answer:[tex]\frac{5}{6}[/tex]
Step-by-step explanation:
Given
5 apples and 7 peaches out of which 4 apples and 2 peaches is rotten
i.e. 1 apple and 5 peaches is fresh
probability of fresh fruit is =[tex]\frac{6}{12}[/tex]
probability of apple =[tex]\frac{5}{12}[/tex]
Probability of both =[tex]\frac{1}{12}[/tex]
Probability of fresh or an apple is=[tex] \frac{6}{12}+\frac{5}{12}-\frac{1}{12}[/tex]
=[tex]\frac{5}{6}[/tex]
palace help me solve these two equations 14, 15
If 5 workers can pave 10 driveways in 30 days, how many days would it take 20 workers to pave 38 driveways?
Samantha threw an apple out of a window. The equation -16t^(2)+120=y can be used to represent the apple's height above the ground, where t = time in seconds after she threw the apple. how long did it take for the apple to hit the ground. Round to nearest hundredth
Question help a robotic rover on mars finds a spherical rock with a diameter of 1313 centimeters. the rover picks up the rock and lifts it 1515 centimeters straight up. the rock has a specific gravity of 5.255.25. the gravitational acceleration on mars is 3.73.7 meters per second squared. if the robot's lifting arm has an efficiency of 3535% and required 1212 seconds to raise the rock 1515 centimeters, how much power (in watts) did the arm use?
You have been offered a project paying $300 at the beginning of each year for the next 20 years. what is the maximum amount of money you would invest in this project if you expect 9 percent rate of return to your investment?
Determine whether the given differential equation is exact. if it is exact, solve it. (if it is not exact, enter not.) (3x + 6y) dx + (6x − 8y3) dy = 0
The given differential equation (3x + 6y) dx + (6x − 8y3) dy = 0 is exact because its mixed partial derivatives are equal. To solve it, first integrate M with respect to x to get a function involving an unknown function of y, then compare it with N to determine the unknown function.
Explanation:To determine if the given differential equation is exact, we need to check if the partial derivative of M with respect to y is the same as the partial derivative of N with respect to x. In this given differential equation (3x + 6y) dx + (6x − 8y3) dy = 0, M = 3x + 6y and N = 6x - 8y3. First, compute the partial derivative of M with respect to y (∂M/∂y) which is 6, then the partial derivative of N with respect to x (∂N/∂x), which is 6 as well. Since ∂M/∂y=∂N/∂x, the given differential equation is exact.
To solve this exact differential equation, we integrate M dx, i.e., ∫M dx, to get ψ(x,y) =1.5x^2+6xy+h(y), where h(y) is an arbitrary function of y. Next, differentiate ψ(x,y) with respect to y, then compare the result with N: ψy=6x+dh/dy=6x-8y³. Solving for dh/dy gives dh/dy=-8y³, so integrating this gives h(y)=-2y⁴+C, where C is a constant. Therefore, the solution to the differential equation is ψ(x,y)=1.5x²+6xy-2y⁴=C.
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Three times a number added to seven is 22
3x+7=22
3x=15
x=5
the number is 5
Write 11760825 in word form
How many squares with sides that are 6 inches long are needed to cover a square with a side length of 30 inches without overlapping
Twenty-five squares with a side length of 6 inches are required to cover a square with a side length of 30 inches.
Explanation:To find out how many squares with sides that are 6 inches long are needed to cover a square with a length of 30 inches, you first need to find the area of each square.
The area of a square is found by multiplying the length of one side by itself.
So, the area of the smaller square is 6 * 6 = 36 square inches, and
the area of the larger square is 30 * 30 = 900 square inches.
Then, you divide the area of the larger square by the area of the smaller square:
900/36 = 25.
Therefore, 25 squares with sides of 6 inches are needed to cover a square with a side length of 30 inches.
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What are the X intercepts of a parabola with vertex (6,27) and y intercept of (0,-81)?