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3 years ago

Which expression is equal to 72?

Mathematics

1 answer:

gladu [14]3 years ago

3 0

Answer:

${2}^{3} \times {3}^{2}$

Step-by-step explanation:

$72 = {2}^{3} \times {3}^{2} \\$

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What is the missing length?<br> 10 yd<br> u<br> area =<br> 60 yd?

charle [14.2K]

Answer:

u = 12

Step-by-step explanation:

formula : (base x height) / 2

60 x 2= 120

120 / 10 = 12

3 0

3 years ago

The mean salary of actuaries is LaTeX: \mu=\$100,000????=$100,000 and the standard deviation is LaTeX: \sigma=\$36,730????=$36,7

krek1111 [17]

Answer:

The lower limit of 95% confidence interval is 99002.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = $100,000

Sample mean, $\bar{x}$ = $111,000

Sample size, n = 36

Alpha, α = 0.05

Population standard deviation, σ = $36,730

First, we design the null and the alternate hypothesis

$H_{0}: \mu = \$100,000\\H_A: \mu \neq \$100,000$

We have to find the lower limit of the 95% confidence interval.

95% Confidence interval:

$\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}$

Putting the values, we get,

$z_{critical}\text{ at}~\alpha_{0.05} = 1.96$

$111000 \pm 1.96(\dfrac{36730}{\sqrt{36}} )\\\\ = 111000 \pm 11998.4667 \\= (99001.5333,122998.4667)\\ \approx (99002,122999)$

The lower limit of 95% confidence interval is 99002.

6 0

4 years ago

Choose one of the factors of x3 – 133.

Andrei [34K]

D because the answer is 133

6 0

4 years ago

Read 2 more answers

Did I do this correctly?

Rina8888 [55]

Yes!
- you applied the distributive property
- combined like terms
- and answered the rest right!

8 0

3 years ago

What is 7.63x19pls help

emmasim [6.3K]

Answer:

144.97

Step-by-step explanation:

Use long multiplication to evaluate.

4 0

3 years ago