Use a graphing calculator to graph the function using the given viewing window. Use the graph to decide if the function is one-to-one. If the function is one-to-one, give the equation of the inverse function.f(x) = x4 - 6x2 + 5; [-3, 3] by [-40, 40]
A. One-to-one; f-1(x) = 
B. One-to-one; f-1(x) =
+ 6x2
C. One-to-one; f-1(x) = 
D. Not one-to-one
Answer: D
Mathematics
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The wages of the employees of a company are presented in this histogram. Answer the question.
What percent of the employees earn less than $8 an hour (to the nearest tenth of a percent)?
A. 36.5% B. 32.4% C. 67.%6 D. 63.5%
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Solve the equation by the Square Root Method.x2 = 7
A. {
, -
}
B. {
}
C. {7, -7}
D. no real solution
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Find the probability.Two 6-sided dice are rolled. What is the probability that the sum is odd and the number on one of the dice is a 3?
A. 
B. 
C. 
D. 
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Find the x-intercept of the line y = 8x - 12.
A. (8, 0)
B. (0, -12)
C. 
D. 
E. none of these
Mathematics