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Dmitry_Shevchenko [17]
3 years ago
7

A study of the amount of time it takes a mechanic to rebuild the transmission for a 2005 Chevrolet Cavalier shows that the mean

is 8.4 hours and the standard deviation is 1.8 hours. If 40 mechanics are randomly selected, find the probability that their mean rebuild time exceeds 8.7 hours.
Group of answer choices

A. 0.1946
B. 0.1285
C. 0.1469
D. 0.1346
Mathematics
1 answer:
Sliva [168]3 years ago
6 0

Answer:

b. 01285 esa es, espero este buena y que te ayude

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Could you please answer this precisely. Thank you!
OleMash [197]

The mathematical functions (equations) are matched to their graph line respectively as follows:

  • y = 960 - 78x: purple straight line.
  • y = 8·3^x: violet line curve that slopes to the left.
  • y = 960·(1/2)^x: green line curve that slopes to the right.

<h3>What is a linear function?</h3>

A linear function can be defined as a type of function whose equation is graphically represented by a straight line on the cartesian coordinate. Mathematically, a linear function is given by this equation:

y = mx ± c.

<h3>What is an exponential function?</h3>

An exponential function can be defined as a type of mathematical function whose values are generated by a constant that is raised to the power of the argument. Mathematically, an exponential function is represented by this formula:

f(x) = keˣ

Next, we would match each of the mathematical functions (equations) to their graph line respectively as follows:

  • y = 960 - 78x: purple straight line.
  • y = 8·3^x: violet line curve that slopes to the left.
  • y = 960·(1/2)^x: green line curve that slopes to the right.

Read more on graphs here: brainly.com/question/24298987

#SPJ1

3 0
2 years ago
Three baseball players are playing catch. Philip is directly south of Barbara and directly west of Savannah. Philip and Savannah
Kitty [74]
Philip and Barbara are 8 meters apart because 5+3=8 so it will make 8 meters
4 0
2 years ago
Round each number to the nearest hundredth.
viva [34]
243.87 and 132.37 thts the answer
4 0
3 years ago
J^2 over 2j times 2j over 3g
Serhud [2]

Answer:

D

Step-by-step explanation:

given \frac{j^2}{2j} × \frac{2j}{3g}

the 2j on the denominator of the first fraction cancels with the 2j on the numerator of the second fraction, leaving the expression in simplified form as

= \frac{j^2}{3g} → D


5 0
3 years ago
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