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3 years ago

Which of the following expressions is equivalent to (12x4−4x3+7x+6)+(3x2−4x+14)?

Mathematics

1 answer:

katovenus [111]3 years ago

3 0

Answer:

It believe its C

Step-by-step explanation:

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In a school, the ratio of soccer players to volleyball players is 4 : 1.

VLD [36.1K]

4:1 means for every four soccer player there is 1 volleyball player

that means there are four times the number of soccer players than volleyball players

7 0

3 years ago

What is the measure of z? an z= [?

Gemiola [76]

what to find

measure of z =1

7 0

3 years ago

4 over 7 divided by 13 over 28

Galina-37 [17]

Answer:

16/13

Step-by-step explanation:

Use a calculator lol

Can I have brainliest please

5 0

3 years ago

Read 2 more answers

A test is normally distributed with a mean of 70 and a standard deviation of 10. Todd scores a 55 on the test. Select the answer

Jlenok [28]

Answer:

Todd's Z-score is - 0.27

Step-by-step explanation:

Explanation:-

Step(i):-

Given data A test is normally distributed with a mean of 70 and a standard deviation of 10.

Mean of the population 'μ' = 70

Standard deviation of the Population ' σ ' = 10

let 'x' be the random variable in normally distributed

Step(ii):-

Given raw score 'x' = 55

Todd's Z-score

$Z = \frac{x-mean}{S.D}$

$Z = \frac{55-70}{55}$

Z = -0.27

Final answer:-

Todd's Z-score is - 0.27

6 0

3 years ago

A round balloon has a diameter of 7 inches

gizmo_the_mogwai [7]

Answer:

The right answer is approximately 210.031 cubic inches. (Answer: E)

Step-by-step explanation:

First, we need to convert the diameter ( $D$ ), in inches, of the round balloon to an entirely decimal mode:

$D = 7\,in + \frac{3}{8}\,in$

$D = \frac{56 + 3}{8}\,in$

$D = \frac{59}{8}\,in$

$D \approx 7.375\,in$

The volume of the balloon is modelled after the volume function of a sphere ( $V$ ), in cubic inches:

$V = \frac{\pi}{6}\cdot D^{3}$ (1)

If we know that $D \approx 7.375\,in$ , then the volume of the round balloon is:

$V = \frac{\pi}{6}\cdot D^{3}$

$V = \frac{\pi}{6} \cdot (7.375\,in)^{3}$

$V \approx 210.031\,in^{3}$

Hence, the right answer is approximately 210.031 cubic inches.

6 0

3 years ago