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Fiesta28 [93]
3 years ago
10

A new washing machine uses 45% less water than an older

Mathematics
1 answer:
enot [183]3 years ago
5 0

Answer:The family will use 792 gallons of water in the new washing machine

Step-by-step explanation:

1440 X 0.55=792

100-45=55

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(3/5)x+1=125/27
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What is the slope of a line with points (3, 12)(7, 16)?
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Answer:

the slope is 1
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The equatorial radius of the planet Jupiter is measured 40 times by a process that is practically free of bias. These measuremen
Nina [5.8K]

Answer:

The 93% confidence interval for the equatorial radius of Jupiter is between 71484 km and 71500 km.

Step-by-step explanation:

Sample size of 30 or larger, so we can use the normal distribution to find the confidence interval.

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.93}{2} = 0.035

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.035 = 0.965, so z = 1.81

Now, find M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

M = 1.81*\frac{28}{\sqrt{40}} = 8

The lower end of the interval is the sample mean subtracted by M. So it is 71492 - 8 = 71484 km.

The upper end of the interval is the sample mean added to M. So it is 71492 + 8 = 71500 km.

The 93% confidence interval for the equatorial radius of Jupiter is between 71484 km and 71500 km.

8 0
3 years ago
What would a monthly payment be on a purchase of a $10,000 car at a 5.9% for 4 years?
gizmo_the_mogwai [7]
The current monthly pay can be calculated as follows;
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10000=p(1.005)^48
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p=7,871
the monthly payment will be:
7871/12
=$655.92
5 0
3 years ago
Read 2 more answers
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