Find the exact value of the expression.sin 20° cos 100° + cos 20° sin 100°
A. 
B. 
C. - 
D. - 
Answer: B
Mathematics
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Determine whether the expression is a polynomial. If it is, state how many terms and variables the polynomial contains. Then state its degree.5m4n4 + 3mn9 - 7
A. Yes; 3; 2; 9 B. No C. Yes; 3; 3; 18 D. Yes; 3; 2; 10
Mathematics
What does the expression 
equal?
?
A. 10 B. x C. 0 D. 1 E. 17
Mathematics
Simplify.
÷ 2 ? 
? 
A. 
B. 
C. 0.097
D. 504
Mathematics
Perform the subtraction visually using symbols. -8 - (-2)
A. 6 B. -10 C. -6 D. -5
Mathematics