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3 years ago

Please solve math problem for me... I will mark you brainliest

Mathematics

1 answer:

snow_lady [41]3 years ago

4 0

Answer:

Angle 1 is 60°

Step-by-step explanation:

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(3^(5))/(3^(-6)) Plus steps.

marissa [1.9K]

(3^(5))/(3^(-6)) = 1/3^-1 = 3

4 0

3 years ago

Read 2 more answers

A. C=22d B. C= d + 22d C. C= d + 22 D. D = 22c

Lelu [443]

Step-by-step explanation:

a. that's the best answer that suits the question per day you multiply by 22

6 0

3 years ago

36 out of 100 randomly selected taxpayers knew about tax incentives for installing energy-saving furnaces. Find a 90% confidence

tresset_1 [31]

Answer:

The 90% confidence interval for the population proportion who knew about the incentives is (0.28, 0.44).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

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

In which

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

For this problem, we have that:

$n = 100, \pi = \frac{36}{60} = 0.6$

90% confidence level

So $\alpha = 0.1$ , z is the value of Z that has a pvalue of $1 - \frac{0.1}{2} = 0.95$ , so $Z = 1.645$ .

The lower limit of this interval is:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.36 - 1.645\sqrt{\frac{0.36*0.64}{100}} = 0.28$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.36 + 1.645\sqrt{\frac{0.36*0.64}{100}} = 0.44$

The 90% confidence interval for the population proportion who knew about the incentives is (0.28, 0.44).

7 0

3 years ago

Which number is an irrational number??

insens350 [35]

Answer:

C -2.2675

Irrational numbers cannot be expressed as a fraction for any integers and they have decimal expansions

7 0

3 years ago

If a boy has 4 pairs of shorts, 8 shirts, and 2 pairs of shoes, how many different outfits could he wear?

sveta [45]

Answer:

Step-by-step explanation:

I paired the first shirt with all of the pants and both shoes which was 8 outfits, but here are 8 other shirts which will also make 8 outfits.

4 0

3 years ago