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docker41 [41]
3 years ago
11

How do I expand or factor the following alebraic expressions:

Mathematics
1 answer:
brilliants [131]3 years ago
4 0
The answers are b and c hope this helps

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Another question what's the formula for an open end of a cylinder??​
Kay [80]

Answer:

Formula for an opened end of a cylinder =

\pi r^2 +2\pi rh\\

Closed at both end =

2\pi r^2 +2\pi r h

Opened at both end =

2\pi rh

Step-by-step explanation:

6 0
3 years ago
Construct a 99​% confidence interval to estimate the population proportion with a sample proportion equal to 0.36 and a sample s
vivado [14]

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:

  • \pi is the sample proportion.
  • 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:

  • \pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.36 - 2.575\sqrt{\frac{0.36(0.64)}{100}} = 0.2364
  • \pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.36 + 2.575\sqrt{\frac{0.36(0.64)}{100}} = 0.4836

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

#SPJ1

8 0
2 years ago
kaleb was playing a video game it took him eight lives to beat the first world it took eight times as many to beat the second wo
KengaRu [80]
Bet its 64,no problem

4 0
3 years ago
Read 2 more answers
If Johnny walks 20 miles a day how many miles what do you walk in one year
Zinaida [17]
He walks 7,300 miles in 1 year
8 0
3 years ago
Read 2 more answers
Bruh It's easy but plis help :/
Ugo [173]

Answer: 0

Explanation:

0 to the 5th power means 0 five times so

0 x 0 x 0 x 0 x 0

=0

3 0
2 years ago
Read 2 more answers
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