Find the exact value under the given conditions.sin ? = 
, 0 < ? < 
; cos ? = 
, 0 < ? < 
Find cos (? + ?).
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Find the area enclosed by the given curves.y = x, y = x2
A. 
B. 
C. 
D. 
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Simplify the algebraic expression.6b - 7b
A. 12b B. -b C. -12b D. b
Mathematics
Divide.-0.1 ÷ (-0.8)
A. -0.125 B. 0.125 C. 0.08 D. -0.025
Mathematics
Solve the problem.A car's distance s in miles from its starting point after t hours is given by s(t) = 5t2Find the average rate of change of distance with respect to time (average velocity) as t changes from 
to 
A. 35 miles/hr B. 55 miles/hr C. 23.6 miles/hr D. 27.5 miles/hr
Mathematics