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xxMikexx [17]
3 years ago
9

Solve equation. -15 + (-8)=

Mathematics
2 answers:
Daniel [21]3 years ago
8 0

Answer:

The answer is - 23

Step-by-step explanation:

- 15 + (-8) =

- <u>23</u>

Gekata [30.6K]3 years ago
3 0

Answer:

-23

Step-by-step explanation:

remove the parenthesis

-15+-8

subtract the numbers

-23

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3 years ago
Find the perimeter of a triangle with vertices A(2,5) B(2,-2) C(5,-2). Round your answer to the nearest tenth and show your work
valina [46]

Answer:

Step-by-step explanation:

Question

Find the perimeter of a triangle with vertices A(2,5) B(2,-2) C(5,-2). Round your answer to the nearest tenth and show your work.​

perimeter of a triangle = AB+AC+BC

Using the distance formula

AB = sqrt(-2-5)²+(2-2)²

AB = sqrt(-7)²

AB =sqrt(49)

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AC= sqrt(-7)²+3²

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