Answer:
C is the answer
Step-by-step explanation:
2pir = 3pi
r = 3/2
area is pir^2
pi(3/2)^2= 9/4 pi cm^2
Answer:
The answer is C
Step-by-step explanation:
Apply the cosine double angle identity to get:
Cos 2PI/3
Step by step explanation:
Hope this helps
Answer:
- incorrect
- correct
- incorrect
Step-by-step explanation:
A + B = (-4x^2 +2x -5) +(3x^2 +6) = x^2(-4+3) +x(2) +(-5+6) = -x^2 +2x +1
The given sum is Incorrect.
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A - C = (-4x^2 +2x -5) -(-5x -4) = -4x^2 +x(2+5) +(-5+4) = -4x^2 +7x -1
The given difference is Correct.
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B + C = (3x^2 +6) +(-5x -4) = 3x^2 -6x +2
The given sum is Incorrect.
