Provide an appropriate response.Prove that the function f is not one-to-one.f(x) = 2 - x4
What will be an ideal response?
Answers may vary. Possible answer:
Find two numbers a and b for which a ? b and f(a) = f(b). Two such numbers are -2 and 2 because f(-2) = f(2) = -14. Thus, f is not one-to-one.
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Which of the following factors can contribute to students' math anxiety?
a. Verbal abuse from parents b. Teachers embarrassing students in front of their peers c. Excessive emphasis on instrumental instruction d. All of the above e. None of the above
Solve the problem.If P dollars are invested at a simple interest rate r (in decimals), the amount A that will be available after t years is A = P + Prt. Find the total amount in an account if $400 is invested at 19.1% simple interest for 3.5 years.
A. $267.40 B. $667.40 C. $473.30 D. $476.40
Evaluate the expression.log39 59.98
A. 1.1175 B. 1.7780 C. 1.5379 D. 0.8949
Solve using both the addition and multiplication properties of equality.- 
x + 2x = 
x + 
A. x = 
B. x = 6
C. x = 0
D. x = - 