Find the quotient.-385 ÷ 77
A. - 
B. 5
C. -5
D. -15
Answer: C
Mathematics
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Verify the identity.1 - 
= - sin x
What will be an ideal response?
Mathematics
Find the requested composition or operation.f(x) = 
, g(x) = 10x + 9Find (g ? f)(x).
A. x + 18
B. x
C. x - 
D. 10x + 81
Mathematics
Solve for real roots.2x1/2 - 3x1/4 - 20 = 0
A. x = 4, - 
B. x = 256, 
C. x = -4, -5
D. x = 256
Mathematics
A sector of area 
in2 is formed by a central angle of 45°. What is the radius of the circle?
?
If the answer needs rounding, round it to three significant digits.
?
r = __________ inches
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Mathematics