Factor completely, or state that the trinomial is prime.x2 + 0.08x + 0.0016
A. (x + 0.0016)2
B. (x + 0.04)2
C. (x - 0.04)2
D. (x + 0.04)(x - 0.04)
Answer: B
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Find the indicated probability.A study was recently done that emphasized the problem we all face with drinking and driving. Four hundred accidents that occurred on a Saturday night were analyzed. Two items noted were the number of vehicles involved and whether alcohol played a role in the accident. The numbers are shown below: Number of Vehicles InvolvedIf an accident is selected at random, what is the probability that it involved alcohol or a single car? Give your answer as a fraction.
A.
B.
C.
D.
Calculate. Write answer in lowest terms.13 - 9
A. 22
B. 3
C. 3
D. 21
Solve the rational inequality. Write the solution set in interval notation. ? 0
A. ? (7, ?)
B.
C. ? [7, ?)
D.
Solve the problem.The expression 0.60(220 - a - r) + r is used to obtain the target heart rate for a cardiovascular workout for a nonathletic male with age a and resting heart rate r. The accompanying table shows the target heart rate for a 23-year-old nonathletic female for various resting heart rates. Find the missing entries.
A. 144.2; 146.2; 148.2 B. 147.8; 149.8; 151.8 C. 135.2; 137.2; 139.2 D. 222.2; 230.2; 238.2