Evaluate the expression.9-1 + 5-1
A. 
B. 
C. 2
D. 
Answer: B
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A silo is a cylinder with a hemisphere on top. The radius of the cylinder and hemisphere is 11.4 feet and the overall height of the silo is 56.8 feet. What is the surface area of the sides and top? Round the answer to two decimal places.
What will be an ideal response?
Add, subtract, or multiply, as indicated. Express your answer as a single polynomial in standard form.(8x2 + 9x + 6) + (2x2 - 6x + 9)
A. 8x2 + 2x + 18 B. 10x2 + 3x - 15 C. 10x2 - 3x + 15 D. 10x2 + 3x + 15
Find dy/dt.y = cos4(?t - 15)
A. -4? cos3(?t - 15) sin(?t - 15) B. -4 cos3(?t - 15) sin(?t - 15) C. 4 cos3(?t - 15) D. -4? sin3(?t - 15)
Solve the problem.Sam estimates that if he leaves his car parked outside his office all day on a weekday, the chance that he will get a parking ticket is 17%. If Sam leaves his car parked outside his office all day next Tuesday, what is the chance that he will not get a parking ticket?
A. 83% B. -17% C. 17% D. 2.89%