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2 years ago

Evaluate if x = -4. - 3x +7

Mathematics

2 answers:

mina [271]2 years ago

5 0

Replace x with -4:

-3(-4) + 7 =

12 + 7 = 19

Answer: 19

Nata [24]2 years ago

4 0

Answer:

Basic fact:

two negatives make a positive

Step-by-step explanation:

x=-4

so replace 3x with x being -4

so it is

-3(-4)+7

-3 x-4+7

-3 x -4 = 12

12+7=19

I work hard on my answers so a brainliest would be appreciated

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2 years ago

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3 years ago

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Answer:

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Step-by-step explanation:

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4 0

2 years ago

Read 2 more answers

The radius of a circle is 6. Using T, which equation expresses the ratio of the circumference of the circle to the circle's diam

Liono4ka [1.6K]

Answer:

Option (B)

Step-by-step explanation:

The given question is incomplete; here is the complete question.

The radius of a circle is 6. Using π, which equation expresses the ratio of the circumference of the circle to the circle's diameter?

A) C/6 = π

B) C/12= π

C) C = 6πr

D) C = 12πr

Formula to get the circumference of the circle is,

C = 2πr = π × D

Where C = circumference of the circle

D = Diameter of the circle

By dividing with D on both the sides of the formula,

$\frac{\text{C}}{\text{D}}=\pi$

Since, diameter 'D' = 2r,

$\frac{\text{C}}{\text{2r}}=\pi$

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$\frac{\text{C}}{12}=\pi$

Therefore, equation given in Option (B) will be the correct expression.

5 0

3 years ago

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