Provide the proper response.If we decide to use the substitution u = x2 + e, then which of the following might be necessary?i) du = 2x dxii)x2 = u - eiii) du = 2ex dxiv) du = 
dx
A. Only i
B. Both ii and iii
C. Both i and ii
D. Both i and iv
Answer: C
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Solve the equation.
(6x - 12) = 
(16x - 8)
A. -1
B. 1
C. -8
D. 
Solve the problem.On the December 8 billing date, Hakeem had a balance due of $640.34 on his credit card. The transactions during the following month were: 
The interest rate on the card is 1.4% per month. Using the average daily balance method, find the balance due on January 8 (December has 31 days).
A. $786.82 B. $650.59 C. $787.17 D. $786.66
Solve the right triangle for all missing sides and angles to the nearest tenth.
c = 23B = 39°
A. A = 51°, a = 14.5, b = 17.9 B. A = 51°, a = 17.9, b = 14.5 C. A = 51°, a = 18.6, b = 14.5 D. A = 51°, a = 17.9, b = 18.6
Find the x-intercepts of the function.g(x) = 5x2 + 12x + 6
A. 
, 
B. 
, 
C. 
, 
D. 
, 