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Mumz [18]
2 years ago
7

Random groups of 30 teachers were asked the starting annual salary for theirfirst teaching job. The sampling variability was low

. If the average salary of several of the groups was close to $59,000, which of these is least likely to be the average salary of another one of the groups?
Mathematics
1 answer:
a_sh-v [17]2 years ago
8 0

Answer:

C. $69,000

Step-by-step explanation:

just did it on the test

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Step-by-step explanation:

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3 years ago
What is the maximum height of of Anna's golf ball? The equation is y=x−0.04x2.
elena-s [515]

Given:

The height of a golf ball is represented by the equation:

y=x-0.04x^2

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y=x-0.04x^2

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y''=-0.08

Since double derivative is negative, the function is maximum at  x=12.5.

Substitute x=12.5 in the given equation to get the maximum height.

y=(12.5)-0.04(12.5)^2

y=12.5-0.04(156.25)

y=12.5-6.25

y=6.25

Therefore, the maximum height of of Anna's golf ball is 6.25 units.

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3 years ago
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