Solve the problem.A weather forecaster predicts that the temperature will drop 4 degrees each hour for the next 6 hours. If the temperature is 16 degrees before the temperature starts falling, what is the temperature after the drop?
A. -24°
B. -8°
C. 24°
D. 6°
Answer: B
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Solve the problem.A ball is thrown vertically upward from the top of a building 128 feet tall with an initial velocity of 112 feet per second. The distance s (in feet) of the ball from the ground after t seconds is 
After how many seconds does the ball strike the ground?
A. 10 sec B. 8 sec C. 129 sec D. 7 sec
The table below shows the number C, in millions, of cell phone subscribers t years after 2005. t 0 1 2 3 4 C 211.90 236.17 253.41 276.33 288.64? A: Use exponential regression to model the number of subscribers as a function of time. Round your answer to two decimal places.B: Plot the exponential model along with the data points.C: According to the exponential model, what is the yearly percentage increase in cell phone subscribers? Round your answer to the whole number.
What will be an ideal response?
Solve.Let f(x) = 
+ 7. Find x when f(x) = 6.
A. -1 B. 1 C. 169 D. empty set
Divide. Round your answer to the nearest hundredth when necessary.2 ÷ 5
A. 0.4 B. 4 C. 1.4 D. 14