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mafiozo [28]
2 years ago
9

What is –9 – (–13) and how do you solve

Mathematics
1 answer:
olga_2 [115]2 years ago
4 0
The answer is 4. you distribute the negative to make a positive sign and then add
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A baby monitor picks up signals within 50 meter radius .how many square meters of coverage does the baby monitor provide
Anna71 [15]

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15.24 square meters

Step-by-step explanation:

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3 years ago
Which of the following expressions could be used to find the perimeter of this figure?
Burka [1]

Answer:

A

Step-by-step explanation:

four of the sides are equal to 18mm, so that would be the 4(18mm), and then the two other sides are equal to 24mm, which is 2(24mm). Your full equation would be:

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4 0
3 years ago
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Is 7n equivalent to 15n-8n
Lemur [1.5K]

Answer:

Yes.

Step-by-step explanation:

Yes. When we simplify 15n-8n, it equals 7n.

5 0
2 years ago
I NEED HELP ASAP!!!!!!! PLEASE HELP ME!!!!!!!!!
aniked [119]

Answer:

a = 33 degrees, b = 147 degrees

Step-by-step explanation:

The sum of all the angles in a triangle is 180 degrees, and to solve for the angle on the other side of 109 degrees is 71 degrees, so to solve for a, have 180 minus 71 and 76. Then the sum of 71 and 76 is angle b since its the result of a subtracting from 180.

3 0
3 years ago
PLEASE HELP!!!
Paladinen [302]

Answer:

d (w) = 0.1w² – w+ 5

Step-by-step explanation:

d(w) = c(w) - a(w)

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= -0.3w²+0.4w²+2w-3w+13-8

= 0.1w²-w+5

4 0
3 years ago
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