Simplify, if possible. If the answer is undefined, state so.
A. 1
B. 2
C. -2
D. 0
Answer: D
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Determine whether the statement is true or false.Every natural number of the form 4k + 5 is prime.
A. True B. False
Solve the problem.Find the center of mass of the region of constant density bounded from above by the sphere 
and from below by the cone 
A. 
= 0, 
= 0, 
= 3(2 + 
)
B. 
= 0, 
= 0, 
= 
(2 + 
)
C. 
= 0, 
= 0, 
= 
(2 + 
)
D. 
= 0, 
= 0, 
= 
(2 + 
)
Draw the angle in standard position and state the quadrant in which it lies.-225°
A. quadrant II
B. quadrant IV
C. quadrant III
D. quadrant I
Solve.The number of miles per gallon of gasoline that a car averages varies inversely as the average speed the car travels. A car gets 17 miles per gallon at 67 mph. How many miles per gallon will it get at 42 mph? Round to the nearest tenth if necessary.
A. 0.09 miles per gallon B. 10.7 miles per gallon C. 0.04 miles per gallon D. 27.1 miles per gallon