Answer the question, concerning the use of substitution in integration.If we decide to use u = x2 + e, then which of the following are correct?i) du = 2x dxii)x2 = u - eiii) du = 2ex dxiv) du = 
dx
A. Both i and iv
B. Both ii and iii
C. Only i
D. Both i and ii
Answer: D
Mathematics
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Round as indicated.835 to the nearest hundred
A. 800 B. 810 C. 700 D. 900
Mathematics
Find the slope-intercept form of the line satisfying the given conditions.Slope 
; y-coordinate of the y-intercept -7
A. y = 
x + 7
B. y = - 
x + 7
C. y = 
x - 7
D. y = - 
x - 7
Mathematics
A. {(-8, 9)} B. {(-7, 8)} C. {(7, 9)} D. no solution; ?
Mathematics
Graph the solution set of the system of inequalities or indicate that the system has no solution.
A. 
B. 
C. 
D. 
Mathematics