Solve.A projectile is thrown upward so that its distance above the ground after t seconds is 
After how many seconds does it reach its maximum height?
A. 24 sec
B. 10 sec
C. 18 sec
D. 6 sec
Answer: B
Mathematics
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Evaluate the integral.
A. 
ln 
+ C
B. 2
+ 2
tan-1 
+ C
C. 
tan-1 
+ C
D. 
ln 
+ C
Mathematics
Solve for y.2x + 3y = 4
A. y = 7 - 2x
B. y = 
C. y = 2 + 2x
D. y = 
Mathematics
A waste water system is being installed in a small town.The large pipes required to reach from the town to the water treatment plant come in 20-foot and 24-foot lengths. The city planner finds that twelve fewer of the 24-foot pipes will be required than if the 20-foot pipes were used.What is the distance from the town to the water treatment plant?
What will be an ideal response?
Mathematics
Provide an appropriate response.If X is normally distributed with ? = 90 and ? = 10, find P(65 < X < 80).
A. 0.1048 B. 0.1428 C. 0.1347 D. 0.1525 E. 0.1232
Mathematics