Simplify.(
- 5)2
A. w2- 10
+ 25
B. w- 10
+ 25
C. w- 5
+ 25
D. w+ 25
Answer: B
Mathematics
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Find the mean.27, 34, 16, 30, 13, 34, 14
A. 27 B. 24 C. 21 D. 34
Mathematics
Find a and k and then evaluate the function. Round your answer to three decimal places when necessary.Let f(x) = 10 + a(2kx) with f(0) = 50 and f(1) = 170. Find f(3).
A. a = 40, k = 2, f(3) = 74 B. a = 40, k = 2, f(3) = 2560 C. a = 40, k = 2, f(3) = 2570 D. a = 4, k = 2, f(3) = 266
Mathematics
The bar graph shows the times it took five men to run a mile. Use the table to answer the question. 
Randy ran a mile in how much less time than Graham ran a mile?
A. 0.36 min B. 0.66 min C. 1.13 min D. 0.56 min
Mathematics
Simplify the expression.(-19) + 80 ÷ (-4)
A. -15 B. -39 C. 15 D. 39
Mathematics