Solve the problem.There is a 3-degree drop in temperature for every thousand feet that an airplane climbs into the sky. If the temperature on the ground is 41 degrees, what will be the temperature when the plane reaches an altitude of 20,000 feet?
A. 19 degrees
B. 
degrees
C. 
degrees
D. 21 degrees
Answer: C
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Solve the problem.A coil of wire rotating in a magnetic field induces a voltage given by e = 20 sin 
,where t is time in seconds. Find the smallest positive time to produce a voltage of 10
.
A. 2.8 sec B. 3 sec C. 2.8? sec D. 3? sec
Graph the ellipse and locate the foci.9x2 + 4y2 = 36
A. foci at (2
, 0) and (-2
, 0)
B. foci at (
, 0) and (-
, 0)
C. foci at (0, 
) and (0, -
)
D. foci at (
, 0) and (-
, 0)
Solve.On a road trip, Jackie and Meredith drove 432 miles through the United States and 113 kilometers through Canada. How many kilometers did they travel in total? Round your answer to the nearest hundredth if necessary.
A. 502.06 km B. 545 km C. 765.58 km D. 808.52 km
Write the decimal as a fraction or mixed number in lowest terms.0.04
A. 
B. 
C. 
D. 