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2 years ago

Simplify 3 ∙ 2x. What is the coefficient? x 2 6 3

Mathematics

1 answer:

siniylev [52]2 years ago

3 0

Answer:

Step-by-step explanation:

Coefficients are always the number being multiplied by (or attached to) the variable, which is shown by a letter

so in 2x, 2 is the coefficient, and x is the variable

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If there was 17 boys and21 girls what would be the ratio

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17 boys to 21 girls
17 boys/21 girls
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3 years ago

Shirley estimated the length of a board to be 18 inches. The actual length is 23 inches. To the nearest tenth of a percent, what

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The percent error of Shirley's estimate is 21.74%

<h3>Calculating pecent error</h3>

Given the following parameters

Actual length = 23 inches
Estimated length = 18in

% error = actual-estimated/actual * 100

% error = 23-18/23 * 100

% error = 500/23

% error = 21.74%

Hence the percent error of Shirley's estimate is 21.74%

Learn more on percent error here: brainly.com/question/5493941

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Which of the following illustrates a phase shift?

Natasha_Volkova [10]

Answer:

A. y = -2 - cos(x-π)

Explanation:

The general form of the trig equation is:

y = A sin (Bx + C) + D

where:

A is the amplitude

$\frac{2\pi}{B}$ is the period

$\frac{-C}{B}$ is the phase shift

D is the vertical shift

Now, let's check the choices:

A. y = -2 - cos(x-π)

$\frac{-C}{B} = \frac{\pi}{1} = \pi$

Therefore, the function has a phase shift of π

B. y = 3 cos(4x)

$\frac{-C}{B} = \frac{0}{4} = 0$

Therefore, the function has no phase shift

C. y = tan(2x)

$\frac{-C}{B} = \frac{0}{2} = 0$

Therefore, the function has no phase shift

D. y = 1 + sin(x)

$\frac{-C}{B} = \frac{0}{1} = 0$

Therefore, the function has no phase shift

Based on the above, the correct answer is A

Hope this helps :)

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Answer:

Step-by-step explanation:

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