3 years ago

Which expression is equivalent to 1/3(12x+6x-21)

Mathematics

1 answer:

marin [14]3 years ago

4 0

Answer:

$6x-7$

Step-by-step explanation:

$\frac{1}{3} (12x + 6x -21)$

break it into pieces

$\frac{1}{3}*12x = 4x$

$\frac{1}{3}*6x=2x$

$\frac{1}{3} *-21=-7$

put it all together

*since there's no negative in front of the other numbers except 7 they're positive so you add them*

$4x + 2x - 7$

simplify

$6x - 7$

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kicyunya [14]

identity property=something times one

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3 years ago

A circle has a center at Left-parenthesis 3 comma 5 right-parenthesis. The point Left-parenthesis 3 comma 8 right-parenthesis is

svet-max [94.6K]

The correct answer for this question would be option B) 18.8 units or the second option.

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3 years ago

(1over5^2(3+2+5)^2=<br>i need helllllllllllllllllp pleaaaaaaassssseee

Nikitich [7]

Answer:

2500

Step-by-step explanation:

5^2(3+2+5)^2

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8 0

3 years ago

Read 2 more answers

Find the distance between points A (10,-1) and B (-2,5). Round to the nearest tenth

bija089 [108]

Answer:

<h2>The answer is 13.4 units</h2>

Step-by-step explanation:

The distance between two points can be found by using the formula

$d = \sqrt{ ({x1 - x2})^{2} + ({y1 - y2})^{2} } \\$

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

A (10,-1) and B (-2,5)

The distance is

$|AB| = \sqrt{ ({10 + 2})^{2} + ({ - 1 - 5})^{2} } \\ = \sqrt{ {12}^{2} + ({ - 6})^{2} } \\ = \sqrt{144 + 36} \: \: \: \: \: \: \: \\ = \sqrt{180} \\ = 6 \sqrt{5} \: \: \\ =13.416407$

We have the final answer as

<h3>13.4 units to the nearest tenth</h3>

Hope this helps you

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2 years ago

15PTS!!!! HELPPPP!!! Determine the length of fencing around an 80 m by 170 m rectangular playing field if fence is to be 25 m ou

marshall27 [118]

Perimeter=2L+2W, in this case L=80+2(25) and W=170+2(25) so

P=2(L+W)=2(80+50+170+50)

P=2(350)=700m

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3 years ago