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3 years ago

Solve 3c + 4 = -20 A. -5.3 B. 6 C. 8 D. -8

Mathematics

2 answers:

AlexFokin [52]3 years ago

4 0

D IF YOU SUBTRACT 4 FROM THE OTHER SIDE YOU HAVE -20+-4= -24 THEN YOU DIVIDE -24 BY 3 AND YOU GET -8 AS YOUR ANSWER

seropon [69]3 years ago

3 0

Hi Brainiac

3c+4=-20

3c= -20-4

3c= -24

Divide both sides by 3

3c/3=-24/3

c= -8

I hope that's help:)

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3 years ago

Given a right triangle with legs a, b and hypotenuse c, solve for b if a= 72 and c= 75

kotykmax [81]

Answer:

The answer is a. 21.

Step-by-step explanation:

We solve this question by using Pythagoras theorem to relate the sides of a right angled triangle.

Here,

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a=72

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$c=\sqrt{a^{2} +b^{2} }$

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$c^{2} =a^{2}+b^{2}$

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3 years ago