Find the exact value of the expression if ? = 60°. Do not use a calculator.f(?) = sin ?Find 4 f(?).
A. 2
B. 2
C. - 
D. - 
Answer: B
Mathematics
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Solve the equation.x2 - x = 30
A. {-5, 6} B. {1, 30} C. {-6, -5} D. {5, 6}
Mathematics
Find the constant of proportionality k, and write the linear function relating the two variables.Suppose that y varies inversely with x. When x = 3, then y = 9.
A. k = 27; y = 
B. k = 27; y = 
C. k = 
; y = 
x
D. k = 
; y = 
Mathematics
Convert 
to Hexidecimal.
a. 48 b. 9A c. A2 d. B6 e. E9
Mathematics
Compute the determinant of the matrix by cofactor expansion.
A. -18 B. 18 C. 0 D. -9
Mathematics