Find the product.-13 ? 
A. 
B. -39
C. - 
D. -8
Answer: D
Mathematics
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Assume that all variables are implicit functions of time t. Find the indicated rate.x2 + 2y2 = 19; dx/dt = 3 when x = 1 and y = 3; find dy/dt.
A. -0.5 B. 0.5 C. 0.22 D. -0.22
Mathematics
Add the polynomials. Assume all variable exponents represent whole numbers.
+ 
A. 
x8 + 
x6 - 
x2 + 7
B. 
x8 + 
x6 + 
x2 + 16
C. - 
x4 + 
x3 + 
x - 2
D. 
x4 + 
x3 + 
x + 16
Mathematics
Solve the problem.Rewrite the following in the form of a single exponential: 132 ? 130
A. 132 B. 130 C. 26 D. 0
Mathematics
Find the remaining sides of a 30-60-90 triangle from the given information.The length opposite the 60° angle is 2.
A. 
; 4
B. 
; 
C. 
; 
D. 
; 4
Mathematics