Simplify the expression. Assume all variables represent positive real numbers.
A. 2
B. 3
C. 4
D. 2
Answer: A
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Solve the equation.2 - 
= 6
A. x = ±4 B. x = -8 C. x = -4 D. The equation is a contradiction.
The table below shows the number N of persons injured per 100 accident-involved vehicles when the accident speed was s miles per hour. s 20 30 40 50 60 N 28 34 38 46 71? A: Use exponential regression to model N as a function of s. Round your answer to two decimal places.B: Plot the exponential model along with the data points.C: Do the data show that accidents at speeds of 60 miles per hour are more dangerous or less dangerous than predicted by the model?
What will be an ideal response?
Find the probability.Suppose that an honest coin is tossed ten times. What is the probability that it will come up heads at least twice?
A. 
B. 
C. 
D. 
Perform the indicated operation for the given f(x) and g(x).f(x) = 
, g(x) = 3x + 8
Find (g ? f)(x).
A. x - 
B. x + 16
C. x
D. 3x + 16