Without using a calculator, give the exact trigonometric function value with rational denominator.sin 30°
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Translate the phrase into an arithmetic expression and calculate by hand.31 less than 51
A. 51 - 31 = 30 B. 51 - 31 = 15 C. 51 - 31 = 40 D. 51 - 31 = 20
Mathematics
Verify the identity.csc2 t - cos t sec t= cot2 t
What will be an ideal response?
Mathematics
Factor.9x2 - 9x - 54
A. 9x2 - 9x - 54 B. 9(x + 2)(x - 3) C. (9x + 18)(x - 3) D. 9(x - 2)(x + 3)
Mathematics
Use synthetic division to determine whether x - c is a factor of the given polynomial.4x3 - 33x2 + 14x + 147; x - 7
A. Yes B. No
Mathematics