Please help, multiple choice
1 answer:
Answer:
D. 9, 12, 15
Step-by-step explanation:
You can use the Pythagorean Theorem to solve.
a^2 + b^2 = c^2
9^2 + 12^2 = c^2
81 + 144 = 225
Remember, c is squared.
The square root of 225 is 15.
D is the only answer that is correct.
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4(-3 + -2d) = 12
(-3 * 4 + -2d * 4) = 12
(-12 + -8d) = 12
-12 + -8d = 12
-12 + 12 + -8d = 12 + 12
-12 + 12 = 0
0 + -8d = 12 + 12
-8d = 12 + 12
12 + 12 = 24
-8d = 24
d = -3
C i think if I’m not mistaken
Answer:
$12.84
Step-by-step explanation:
calculator
B. is the answer because they have 2 variables that you need to combine “combine like terms”
Answer:
a) 638.40
b) 638.40+111.72=750.12
c) 750.12×4=3000.48
