Find the exact value of the expression if ? = 30°. Do not use a calculator.f(?) = sin ?Find [f(?)]2.
A. 
B. 1
C. 
D. 
Answer: A
Mathematics
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Calculate the flux of the field F across the closed plane curve C.F = (x+y)i + xyj; the curve C is the closed counterclockwise path around the rectangle with vertices at 
and 
A. 120 B. 75 C. 85 D. 175
Mathematics
Completely factor the polynomial or state that the polynomial is prime.20x2 + 23x + 6
A. (4x - 3)(5x - 2) B. (20x + 3)(x + 2) C. prime D. (4x + 3)(5x + 2)
Mathematics
Find the slope of the line containing the two points.(-6, 3); (-6, 8)
A. - 
B. 5
C. 0
D. undefined
Mathematics
Factor.t2 + 1.4t + 0.49
A. t(t + 1.4) B. (t + 0.7)2 C. (t + 1.4)2 D. (t2 + 0.7)2
Mathematics