Find the exact value of the expression.cos 
cos 
+ sin 
sin 
A. 1
B. 
C. 
D. 
Answer: C
Mathematics
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Perform the indicated operation.3 - 12
A. -9 B. 9 C. 15 D. -15
Mathematics
The company that prints the office letterheads and envelopes charges a $50 setup fee and $0.001 per envelope for orders over 5000. Calculate the cost of ordering 12,000 envelopes.
A. $120 B. $170 C. $12 D. $62
Mathematics
Subtract and write the resulting polynomial in descending order of degree.(5y + 10) - (-4y + 8)
A. 9y + 2 B. 9y + 18 C. -9y - 2 D. 11y
Mathematics
Classify the polygon as accurately as possible.
A. rectangle B. trapezoid C. rhombus D. parallelogram
Mathematics