Factor completely, or state that the polynomial is prime.x3 - 25x
A. (x2 + 5)(x - 5)
B. x(x - 5)2
C. x(x + 5)(x - 5)
D. prime
Answer: C
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Write the equation of the axis of symmetry.f(x) = 4x2 + 8x + 0
A. x = 4 B. x = -4 C. x = 1 D. x = -1
At one high school, students can run the 100-yard dash in an average of 15.2 seconds with a standard deviation of 0.9 seconds. The times are very closely approximated by a normal curve. Find the percent of times that are:More than 15.2 seconds
A. 34% B. 50% C. 68% D. 48%
Solve. Use the principle of square roots.x2+ 10x + 25 = 14
A. -5 + 
, -5 - 
B. 9
C. -
, 
D. 5 + 
, 5 - 
Solve. Round your answer to the nearest tenth, if necessary.An object is thrown upward from the top of a 
building with an initial velocity of 48 feet per second. The height, h, of the object after t seconds is given by the quadratic equation 
When will the object hit the ground?
A. In 5 seconds B. In 160 seconds C. In 2 seconds D. In 7 seconds