4 years ago

Which expressions are equivalent to k/2

Mathematics

2 answers:

hoa [83]4 years ago

6 0

k * 1/2

do you need more?

Sophie [7]4 years ago

4 0

Answer:

1/2k

k divided by 2

Step-by-step explanation:

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3 years ago

5 - 2 (a + 3b) / 2 = ? / ?

Semmy [17]

Answer:

(5-2a+6b)/2

Step-by-step explanation:

According to PEMDAS, we would multiply 2 by (a+3b) first. This would equal 2a+6b. Since this is being subtracted from 5, the numerator would equal 5-2a+6b. This would bring the simplified answer to (5-2a+6b)/2

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3 years ago

What’s the value of Y? <br> What’s the measure of angle A? <br> What is the measure of arc DAB

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Step-by-step explanation:

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3 years ago

Adult entrance fees to amusement parks in the United States are normally distributed with a population standard deviation of 2.5

kondor19780726 [428]

Answer: 1.509

Step-by-step explanation:

The formula of Margin of Error for (n<30):-

$E=t_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}$

Given : Sample size : n= 22

Level of confidence = 0.99

Significance level : $\alpha=1-0.99=0.01$

Using the t-distribution table ,

Critical value : $t_{n-1, \alpha/2}=t_{21,0.005}= 2.831$

Standard deviation: $\sigma=\text{ 2.5 dollars }$

Then, we have

$E=( 2.831)\dfrac{2.5}{\sqrt{22}}\approx1.509$

Hence, the margin of error for a 99% confidence interval for the population mean =1.509

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3 years ago

What is -3(x-8)+7x=12

algol13

Answer:

18/5

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers