Find the solution set for the inequality.3z + 1 > 2z + 7

A. {z|z < 6}
B. {z|z > 8}
C. {z|z < 8}
D. {z|z > 6}


Answer: D

Mathematics

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Solve the problems.A cheetah can run at a speed of approximately 69 miles per hour. Calculate this speed in feet per second. Round to the nearest whole number.

A. 112 ft./sec. B. 101 ft./sec. C. 138 ft./sec. D. 93 ft./sec.

Mathematics

For the parametric equations given, use a graphing calculator to generate the curve over the stated interval for the parameter t. Use the window specified. Also, find a rectangular equation for the curve.x = ln(t - 2), y = 3t + 1, for t in (2, 10]

A.

The rectangular equation for the curve is
y = ex + 7, for x in [-?, ln 8].
B.

The rectangular equation for the curve is
y = 3ex + 7, for x in [-?, ln 8].
C.

The rectangular equation for the curve is
y = 3ex - 7, for x in [-?, ln 8].
D.

The rectangular equation for the curve is
y = 3ex + 2, for x in [-?, ln 2].

Mathematics

Solve the problem.You deposit  every 6 months into an annuity with an annual interest rate of , compounded semiannually. What is the balance after 20 years? What is the balance after 40 years?

A. $2977.81; $55,124.50 B. $2977.81; $9502.55 C. $9502.55; $55,124.50 D. $9502.55; $25,905.65

Mathematics

Multiply the polynomials using the special product formulas. Express the answer as a single polynomial in standard form.(x + 12y)(x - 12y)

A. x2 - 24xy - 144y2 B. x2 + 24xy - 144y2 C. x2 - 24y2 D. x2 - 144y2

Mathematics