Using the horizontal-line test, determine whether the function is one-to-one.f(x) = 
- 3
A. Yes
B. No
Answer: A
Mathematics
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Solve the problem.Horace's mean score on five exams is 85.0. Find the sum of his scores.
A. 440 B. 453 C. 425 D. 355
Mathematics
Solve the formula for the specified variable.a + b = s + r for s
A. s = r(a + b)
B. s = a + b - r
C. s = 
+ b
D. s = 
Mathematics
Solve.A swimmer swims the 200m backstroke in 2.23547 minutes. Round her time to the nearest hundredth.
A. 2.25 minutes B. 2.23 minutes C. 2.235 minutes D. 2.24 minutes
Mathematics
Write the expression in lowest terms.
A. 1
B. -1
C. 
D. 
Mathematics