Classify the equation as a conditional equation, an identity, or a contradiction. Find the solution set.18(x - 1) = 2(9x + 2) - 22
A. Contradiction; ?
B. Conditional; {0}
C. Conditional; {-18}
D. Identity; {all real numbers}
Answer: D
Mathematics
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At one high school, the mean time for running the 100-yard dash is 
with a standard deviation of 0.9 seconds. The times are normally distributed.Find the percent of times that are below 17 seconds.
A. 84% B. 98% C. 2.5% D. 97.7%
Mathematics
Solve by the substitution method. x + 6y = 367x + 7y = 42
A. (-6, 0) B. (36, 42) C. (0, 6) D. (1, 5)
Mathematics
Answer the question.A retailer finds that total costs per day are given by c = 144
+ 36, where c is cost and n is units sold. What is c when no units are sold?
A. $36 B. $864 C. $180 D. $72
Mathematics
Find the limit.Let
f(x) = 6 and
g(x) = -2. Find
[f(x) ? g(x)].
A. -12 B. -2 C. 1 D. 4
Mathematics