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3 years ago

Simplify the expression. -2(7-12)

Mathematics

2 answers:

Sladkaya [172]3 years ago

7 0

-2(7-12)=
-2(-5)=
10 = Answer

mylen [45]3 years ago

6 0

Answer: 10
7 minus 12 is negative 5. Negative 2 times negative 5 is 10.

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Answer:

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Step-by-step explanation:

x^2-x-20

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2 years ago

You are looking at the New York ball drop on New Year’s Eve at a distance of 100 m away from the base of the structure. If the b

Fofino [41]

The question is an illustration of related rates.

The rate of change between you and the ball is 0.01 rad per second

I added an attachment to illustrate the given parameters.

The representations on the attachment are:

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$\mathbf{\theta = \frac{\pi}{4}}$

First, we calculate the vertical distance (y) using tangent ratio

$\mathbf{\tan(\theta) = \frac{y}{x}}$

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$\mathbf{y = 100\tan(\theta) }$

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Substitute values for the rates and $\mathbf{\theta }$

$\mathbf{ \sec^2(\pi/4) \cdot \frac{d\theta}{dt} = \frac{1}{100} \cdot 2}$

This gives

$\mathbf{ (\sqrt 2)^2 \cdot \frac{d\theta}{dt} = \frac{1}{100} \cdot 2}$

$\mathbf{ 2 \cdot \frac{d\theta}{dt} = \frac{1}{100} \cdot 2}$

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Read more about related rates at:

brainly.com/question/16981791

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denis23 [38]

A. Total pairs to dress pairs

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2 years ago

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We know that
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Then
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