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1 year ago

Find an expression which represents the sum of (-4x - 4) and (-4x - 10) in simplest terms.

Mathematics

1 answer:

alekssr [168]1 year ago

6 0

The value of the expression (-4x - 4) + (-4x - 10) is -8x - 14

<h3>What are expressions?</h3>

Expressions are mathematical statements that are represented by variables, coefficients and operators

<h3>How to determine the value of the expression?</h3>

The expression is given as

The sum of (-4x - 4) and (-4x - 10)

This can be represented as

(-4x - 4) + (-4x - 10)

Remove the bracket

So, we have

(-4x - 4) + (-4x - 10) = -4x - 4 - 4x - 10

Collect the like terms

So, we have

(-4x - 4) + (-4x - 10) = -4x - 4x - 4 - 10

Evaluate the like terms

So, we have

(-4x - 4) + (-4x - 10) = -8x - 14

Hence, the value of the expression (-4x - 4) + (-4x - 10) is -8x - 14

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Step-by-step explanation:

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3 years ago

Read 2 more answers

Write 5.9/100 as a percent

leonid [27]

Here is your answer:

<span>5.9/100 * 100 = 0.059
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4 years ago

If a windshield wiper covers an area of approximately 160 square inches when it rotates at an angle of 84°, find the length of t

sergey [27]

General Idea:

We can use the below formula to find the area of sector (A), when angle of sector and radius is given:

$A=\frac{\theta}{360} \cdot \pi \cdot r^2$

Applying the concept:

We need to substitute 84 for $\theta$ and 160 for A in the above formula:

$160 = \frac{84}{360} \cdot \pi \cdot r^2\\ Solving \; for \; r\\ \\ \frac{84\pi}{360} \cdot r^2=160\\ Multiply \; the \;reciprocal\; \frac{360}{84\pi} \;on\;both\;sides\;of\;the\;equation\\ \\ r^2=160\cdot \frac{360}{84\pi} \\ \\ r^2=\frac{57600}{84\pi} \\Taking \;square\;root\;on\;both\;sides\\ r=\sqrt{\frac{57600}{84\pi}} \approx14.8\; inch$

Conclusion:

If a windshield wiper covers an area of approximately 160 square inches when it rotates at an angle of 84°, the length of the wiper to the nearest tenth of an inch is <u>14.8</u>

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3 years ago

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Cerrena [4.2K]

Hey, I believe the answer to the question is A.

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3 years ago