Simplify.
A. 0
B. 1
C. -1
D. -16
Answer: C
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Solve the problem.A room measures 14 ft by 
The ceiling is 
above the floor. The door is 
by 
A gallon of paint will cover 78.7 ft2. How many gallons of paint are needed to paint the room (including the ceiling and not including the door)? Round your answer up to the next whole number.
A. 7 gallons B. 18 gallons C. 11 gallons D. 4 gallons
Solve the problem.A private shipping company will accept a box for domestic shipment only if the sum of its length and girth (distance around) does not exceed 120 in. Suppose you want to mail a box with square sides so that its dimensions are 
and it's girth is 
What dimensions will give the box its largest volume?
A. 40 in. × 20 in. × 40 in.
B. 20 in. × 20 in. × 100 in.
C. 
in. × 
in. × 20 in.
D. 20 in. × 20 in. × 40 in.
Perform the indicated operation. Be sure to simplify your answer.
- 
A. 
B. 
C. 
D. 
Without graphing, determine whether the graph of the quadratic function opens up or opens down.f(x) = -3x2 - 4x + 5
A. opens up B. opens down