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Ghella [55]
3 years ago
15

jada earns $7 per hour mowing her neighbors' lawns. andre gets paid $5 per hour for the first hour of babysitting and $8 per hou

r for any additional hours he babysits. what is the number of hours they both can work so that they get paid the same amount?
Mathematics
2 answers:
Harlamova29_29 [7]3 years ago
3 0

jada 2 andre 3 hours

kow [346]3 years ago
3 0
Jada 2 and $3 this is the abeees
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What is the image point of (4, - 7) after a translation right 4 units and up 5 units?
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<em>( 8, - 2 )</em>

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The main cable of a suspension bridge forms a parabola, described by the equation y = a(x - h)2 + k, where y is the height in fe
nirvana33 [79]
Refer to the diagram shown below.

When x = 30 ft, the cable is at 15 ft, therefore y(30) = 15.
That is,
a(30 - h)² + k = 15            (1)

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y(0) = 6 ft, and y(90) = 6 ft
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a(90 - h)² + k = 6          (3)

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Therefore
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A graph of the solution verifies that the solution is correct.

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Construct a 99​% confidence interval to estimate the population proportion with a sample proportion equal to 0.36 and a sample s
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Using the z-distribution, the 99​% confidence interval to estimate the population proportion is: (0.2364, 0.4836).

<h3>What is a confidence interval of proportions?</h3>

A confidence interval of proportions is given by:

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which:

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  • z is the critical value.
  • n is the sample size.

In this problem, we have a 99% confidence level, hence\alpha = 0.99, z is the value of Z that has a p-value of \frac{1+0.99}{2} = 0.995, so the critical value is z = 2.575.

The estimate and the sample size are given by:

\pi = 0.36, n = 100.

Then the bounds of the interval are:

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The 99​% confidence interval to estimate the population proportion is: (0.2364, 0.4836).

More can be learned about the z-distribution at brainly.com/question/25890103

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