Find the exact value of the expression without using a calculator.cos 
cos 
+ sin 
sin 
A. - 1
B. 
C. 
D. 
Answer: B
Mathematics
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Use the addition property of equality to solve the equation.x + 1 = 19
A. 
B. 20
C. 18
D. -18
Mathematics
Convert to scientific notation.1,032,000,000,000,000,000
A. 1032 × 1015 B. 1.032 × 1018 C. 1032 × 10-15 D. 1.032 × 10-18
Mathematics
Completely factor the polynomial or state that the polynomial is prime.512y3 - 1
A. (512y - 1)(y2 + 8y + 1) B. (8y - 1)(64y2 + 8y + 1) C. (8y - 1)(64y2 + 1) D. (8y + 1)(64y2 - 8y + 1)
Mathematics
Graph the solution set of the system of inequalities.
A. 
B. 
C. 
D. 
Mathematics