<h2><u>ANSWER</u></h2>
2
Step-by-step explanation:
10+4m
=> 10+4(-2)
=> 10-8
=> 2
Answer:
$40
Step-by-step explanation:
18.84
Step-by-step explanation:
divide 12 by 2 which is 6 then times that by 3.14
Answer: I think the first one is A. and the next one is B
Step-by-step explanation:
Answer:
∠ A = 130° , ∠ B = 50°
Step-by-step explanation:
supplementary angles sum to 180°
express ∠ A in terms of ∠ B , that is ∠ A = 3∠B - 20 , then
∠ A + ∠ B = 180° , that is
3∠B - 20+ ∠B = 180 ( add 20 to both sides )
4∠B = 200 (divide both sides by 4 )
∠ B = 50°
∠ A = 3 × 50° - 20 = 150° - 20° = 130°
