If 8a + 7b + c = 9, what is -6c - 48a - 42b
2 answers:
Answer:
-54
Step-by-step explanation:
8a + 7b + c = 9
We want -6c, but we have c in the equation so multiply by -6
-6(8a + 7b + c) = 9*-6
-48a -42b -6c = -54
Rearranging the equation
-6c - 48a - 42b = -54
The correct answer is -54
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Answer:
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Step-by-step
I think this would be the answer, sorry if it's not
1+8=3r
9=3r
Both divided by 3
3=r
B^2 = a^2 - c^2
b^2 = 9^2 - 5^2
b^2 = 56
b = 7.5
