Determine where the graph of the function is increasing, decreasing, concave up, concave down. Then sketch the graph.f(x) = x4 - 2x2 + 3

A.

B.

C.

D.


Answer: B

Mathematics

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Graph the function.r(x) = x3 - 3x + 3

A.

B.

C.

D.

Mathematics

Solve the problem.A convention manager finds that she has $1440 made up of twenties and fifties. She has a total of 45 bills. How many fifty-dollar bills does the manager have?

A. 12 fifty-dollar bills B. 27 fifty-dollar bills C. 18 fifty-dollar bills D. 45 fifty-dollar bills

Mathematics

Show by substitution whether the number r is a solution of the corresponding quadratic equation.x2 - 7x + 10 = 0; r = -5

A. Yes B. No

Mathematics

Suppose that ln 2 = a and ln 5 = b. Use properties of logarithms to write each logarithm in terms of a and b.ln 

A. (a2 + b)
B. (a - b)
C. (a + b)
D. (2a + b)

Mathematics