Add or subtract as indicated.
A. 4.416
B. 5.000
C. 4.384
D. 5.384
Answer: C
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A balloon is initially full of air, but then it springs a leak. It leaks at a constant rate of 6 cubic inches per minute. After a while the leak is patched, a pump is attached, and the balloon is re-inflated to its original volume. The pumping rate is constant at 7 cubic inches per minute. Let B denote the volume, in cubic inches, of air in the balloon after t minutes.
?
A: Explain in practical terms the meaning of 
.
B: During the time the balloon is leaking air, what is the value of ?
C: During the time air is being pumped into the balloon, what is the value of ?
What will be an ideal response?
Provide an appropriate response.What is the x-intercept of the function f(x) = log(x + 4)?
A. (5, 0) B. (-3, 0) C. (-4, 0) D. (4, 0)
Write the function in terms of its cofunction. Assume that any angle in which an unknown appears is an acute angle.sec 29.7°
A. cos 150.3° B. csc 60.3° C. cos 60.3° D. csc 29.7°
Solve.The amount of water used to take a shower is directly proportional to the amount of time that the shower is in use. A shower lasting 23 minutes requires 13.8 gallons of water. Find the amount of water used in a shower lasting 8 minutes.
A. 4.8 gallons B. 5.4 gallons C. 4.2 gallons D. 184 gallons