Find the probability for the experiment of tossing a coin four times. Use the sample space
?
?S = {HHHH,HHHT,HHTH,HHTT,HTHH,HTTH,HTTT,THHH,THHH,THHT,THTH,THTT,TTHH,TTHT,TTTH,TTTT}
?
The probability of getting exactly one head.
?
A. ?
B. ?
C. ?
D. ?4
E. ?
Answer: B
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Solve the problem.Big Jack's pizzas are the best values in town. His guarantee is that if you buy 5 pizzas, he'll take 10% off the sixth, 20% off the seventh, and 50% off of every pizza after that. On Friday night Elmer's fraternity ordered 8 pizzas for their party. What was the price per square inch on the 7th pizza if each pizza was a(n) 12-inch round and the original price was $7.99? (Use 3.14 for ?. The size of a pizza is its diameter.)
A. $0.16 per square inch B. $0.06 per square inch C. $0.08 per square inch D. $0.12 per square inch
Use the rules for exponents to rewrite the expression and then evaluate the new expression. (-2)2(-2)3
A. -64
B. -32
C. 
D. 
Factor the trinomial completely, or state that the trinomial is prime.9x2 - x - 38
A. (9x + 19)(x - 2) B. (9x + 2)(x - 19) C. (9x - 2)(x + 19) D. (9x - 19)(x + 2)
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