Complete the factoring.5x2 + 19x + 12 = (5x + 4)( )
A. 5x + 3
B. x + 3
C. x - 3
D. 5x + 8
Answer: B
Mathematics
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Solve the problem.A boat goes 120 miles downstream in the same time it can go 90 miles upstream. The speed of the current is 4 miles per hour. Find the speed of the boat in still water.
A. 24 mph B. 28 mph C. 21 mph D. 32 mph
Mathematics
Solve the problem.Find the average distance from a point 
in the region bounded by 
to the origin.
A. 
B. 
C. 
D. 
Mathematics
Express the integrand as a sum of partial fractions and evaluate the integral.
dx
A. ln 
+ C
B. ln 
+ C
C. ln 
+ C
D. ln 
+ C
Mathematics
Solve the initial value problem.
= 
; 
t=1 = -5, r(1) = 5
A. r = 
- 2t + 4
B. r = 
- 2t + 6
C. r = 
- 
t + 4
D. r = 3t - 2t + 6
Mathematics