Find the area of the region specified by the integral(s).
+ 
A. 16
B. 2
C. 32
D. 4
Answer: A
Mathematics
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Find the value of x. Assume all angle measures are given in degrees.
A. 12° B. 8° C. 10° D. 15°
Mathematics
Solve the problem.After 3 years, the value of a certain car purchased new for x dollars is given by the expression 
-3 ? x. Simplify this expression.
A. 
x dollars
B. 
x dollars
C. 
x dollars
D. 
x dollars
Mathematics
Given that the x- and y-coordinates of a moving particle are given by the indicated parametric equations, find the magnitude and direction of the velocity for the specific value of t.x = 8t + 6, y = -9t + 3, t = 4
A. 50.33, 311.6° B. 12.04, 311.6° C. 50.33, 131.6° D. 12.04, 131.6°
Mathematics
Find the exact value under the given conditions.sin ? = 
, 0 < ? < 
; cos ? = 
, 0 < ? < 
Find cos (? + ?).
A. 
B. 
C. 
D. 
Mathematics