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Sarita says the question of a line with a y-intercept of 7 that includes the point (3,-2) is y= -2/3x+7.Is she right if so explain why.If not,find the correct equation

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general 9 months ago 8038

The function f(x) = 40x + 8 represents the amount of money Makayla earns reupholstering furniture. The function g(x) = 3x − 4 represents her upfront costs. Find (f – g)(4) to determine how much profit she will make from four pieces of furniture. $168 $21 $160 $8

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general 9 months ago 5691

The vertex of a parabola is (−5,2) , and its focus is (−5,6) .What is the standard form of the parabola??

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general 9 months ago 5238

cora says she doesn't need to know the y-intercept of a line to write its equation, just its slope and some other point on the line. Is she correct? Explain. If Cora is correct, explain how to find the equation of a line with a alope of -1/3 that includes the point (2,6).

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general 9 months ago 6866

A researcher (Jack) comes to you and is interested in the average length of time a computer fan will run before it needs to be cleaned. Jack believes that this time period is approximately normally distributed with a standard deviation of 30 hours. You tell him to take a sample of computer fans. Jack comes back to you and says that he took a random sample of 36 computers, and found that the average length of time was 876 hours. Use a 94% confidence interval.

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general 9 months ago 1148

carlos pays a monthly fee of $12, and he pays an additional $0.05 per minute. The least he has been charged in a month is $85.15. What are the possible # of minutes he has used his phone in a month? Use M for the number of minutes, and solve your inequality for M.

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general 9 months ago 2264

What does a standard score measure? A. the number of standard deviations that are present under a normal curve B. the number of standard deviations a measurement is from the highest value C. the number of standard deviations a measurement is from the lowest value D. the number of standard deviations a measurement is from the mean

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general 9 months ago 6510

A worker at a factory earns $12 per hour plus 2.50 for each unit produced that hour. The worker earns a total of $27 in one hour. What is the total number of units produced?

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general 9 months ago 1868

A bank loaned out $21,500 , part of it at the rate of 11% annual interest, and the rest at 10% annual interest. The total interest earned for both loans was $2,340.00 . How much was loaned at each rate? was loaned at 11% was loaned at 10%

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general 9 months ago 6663

the total dollar amount of all final goods and services purchased within the nations borders in each year is known as the ____. A. economic indicator B. Gross domestic productC. consumer price indexD. business cycle

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general 9 months ago 7334

Which expression has a negative value? a)−1×−2 b)−1×2×−3×4×−5 C) 1×−2×−3×−4×−5 d)1×−2×3×−4×5

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general 9 months ago 9753

A manufacturing plant earned $80 per man-hour of labor when it opened. Each year, the plant earns an additional 5% per man-hour.Write a function that gives the amount A(t) that the plant earns per man-hour t years after it opens.

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general 9 months ago 7407

The graphs below show four functions:Which graph best shows the function f(x) = 5(2)−x to represent the rate at which a radioactive substance decays? (1 point)Graph BGraph CGraph DGraph A

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general 9 months ago 8797

value of the expression below on the horizontal span of 0 to 10. (Round your answer to two decimal places.)x2 + 19x + 2

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general 9 months ago 8889

Suppose that time invest $10,000 in an account that offers are percent annual interest, compounded quarterly if the investment increases to $12,694.34 in five years, find the annual rate of interest

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general 9 months ago 5765

Given ^MNO = ^PQR,MN = 6 +2y, MO = 2x + 1,PO = 3y + 4, and PR = 10 - X.Find the lengths of PQ and PR.

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general 9 months ago 2270

To purchase $12,900 worth of machinery for her business, Melissa made a down payment of $2100 and took out a business loan for the rest. After years of paying monthly payments of $478.67, she finally paid off the loan.a) What was the total amount Melissa ended up paying for the machinery (including the down payment and monthly payments)?(b) How much interest did Melissa pay on the loan?

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general 9 months ago 6048

1/4 of a rod was painted red. 2/5 was painted orange and 2/7 of the remainder was painted yellow. The yellow section was 20cm long how long was the rod

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general 9 months ago 5425

A rectangle has sides in the ratio 1:3 a)Write down the length of the longer side of the length of the shorter side is: (i) 1 cm (ii) 2 cm (iii) 5 cm

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general 9 months ago 4514

How to solve the problems

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general 9 months ago 9146