Simplify the expression. Use positive exponents. Assume variables represent nonnegative numbers.(-2x2y)4
A. 16x6y4
B. -8x2y4
C. 16x8y4
D. -8x2y
Answer: C
Mathematics
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Find the second derivative of the function.y = 
A. 
= 1 + 
B. 
= 2 + 
C. 
= 2x - 
D. 
= 2 - 
Mathematics
Evaluate the integral.
A. - 
+ 
+ x + C
B. - 
+ 
+ C
C. - 
+ 
+ x + C
D. - 
+ cot 2x + x + C
Mathematics
Find the angle between the given vectors to the nearest tenth of a degree.a = 5i + 4j, b = -9i + 4j
A. 165.3° B. 125.9° C. 117.4° D. 118.4°
Mathematics
For the given graphical representation of vector v, estimate a1 and a2 so that 
and calculate 
.
A. a1 = 10, a2 = 0; 
= 10
B. a1 = 0, a2 = 10; 
= 3.2
C. a1 = 0, a2 = 10; 
= 10
D. a1 = 0, a2 = 10; 
= 100
Mathematics