Solve the equation by using the quadratic formula.x2 + 4x + 4 = 0
A. {2 , 0}
B. {2}
C. {-2, 2}
D. {-2}
Answer: D
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Letting r stand for "The food is good," p stand for "I eat too much," and q stand for "I'll exercise," write the following in symbolic form.If the food is not good, I won't eat too much.
A. r ? ~p B. ~(r ? p) C. ~r ? ~p D. ~p ? ~r
Factor the expression. Express your answer so that only positive exponents occur. (x + 8)-3/5 + (x + 8)-1/5 + (x + 8) 1/5
A. (x + 8)-3/5 [1 + (x + 8)4/5 + (x + 8)6/5] B. (x + 8)-3/5 [1 + (x + 8)1/5 + (x + 8)3/5] C. (x + 8)-3/5 [1 + (x + 8) 2/5 + (x + 8)4/5] D. (x + 8)-3/5 [1 + (x + 8) -2/5 + (x + 8) -4/5]
Solve the problem. Use 3.14 as the approximate value of ?. Round to the nearest hundredth if necessary.At $2.70 per cubic in., how much will it cost to fill a container with dimensions of 
A. $261.36 B. $106.92 C. $178.20 D. $202.50
Solve the problem.A coin is tossed upward from a balcony 280 ft high (ho) with an initial velocity of 
During what interval of time will the coin be at a height of at least 40 ft? 
A. 5 sec ? t ? 10 sec B. 0 sec ? t ? 1 sec C. 0 sec ? t ? 5 sec D. 4 sec ? t ? 5 sec