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2 years ago

14.

Mathematics

1 answer:

MatroZZZ [7]2 years ago

6 0

It doesn’t show the bar graph

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ILL GIVE BRAINLY THIS IS THE WHILE QUESTION I FORGOT TO ADD THIS

Ne4ueva [31]

B. Situation A
C. Situation B

Explanation: Situation A has more students on the higher numbers.

Second Explanation: Situation B has numbers on the 70.

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2 years ago

Write the expression as a product.<br> 25-(a + 7)^2

Nastasia [14]

$25 - ({a + 7})^{2} =$

$(5 + (a + 7))(5 - (a + 7)) =$

$(a + 12)( - a - 2)$

Have a great day ♡

6 0

2 years ago

Read 2 more answers

A survey of 80 randomly selected companies asked them to report the annual income of their presidents. Assuming that incomes are

Artyom0805 [142]

Answer:

The 90% confidence interval estimate of the mean annual income of all company presidents is ($579,545, $590,580).

Step-by-step explanation:

The information provided is:

$n=80\\\sigma=30,000\\\bar x=585062.50\\\text{Confidence level} = 90\%$

The critical value of <em>z</em> for 90% confidence level is, 1.645.

Compute the 90% confidence interval estimate of the mean annual income of all company presidents as follows:

$CI=\bar x\pm z_{\alpha/2}\cdot\frac{\sigma}{\sqrt{n}}\\\\=585062.50\pm 1.645\times\frac{30000}{\sqrt{80}}\\\\=585062.50\pm5517.50\\\\=(579545, 590580)$

Thus, the 90% confidence interval estimate of the mean annual income of all company presidents is ($579,545, $590,580).

This interval implies that there is 90% probability that the true mean annual income of all company presidents is within this interval.

4 0

2 years ago

The area of the base of this prism is 35cm^2 , what is the volume of the prism

mr Goodwill [35]

V=Bh what is the height of the prism? You do (35^2 )(height)

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3 years ago

Does f(x) mean ftimes x when referring to a functionſ? if not, what does f(x) mean? Provide an example with your explanation,

sattari [20]

Answer:

f(x) - when referring to a function - means that x is the input value that you substitute into an equation.

For example, if f(x) = 2x + 3 and you were asked to find f(2), you could substitute x = 2 into the equation 2x + 3 to get 7.

Hope this helps!

6 0

2 years ago