Determine the center (or vertex if the curve is a parabola) of the given curve.4x2 - y2 - 8y = 12
A. (0, -4)
B. (-2, 0)
C. (2, 0)
D. (0, 4)
Answer: A
Mathematics
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Show that the function is a solution of the wave equation.w(x, t) = ex - ct
A. No B. Yes
Mathematics
Write as a percent.0.00471
A. 0.0471% B. 0.471% C. 0.000471% D. 0.2355%
Mathematics
Solve the problem.If money is invested for 3 years with interest compounded annually, the future value of the investment varies directly as the cube of 1 + r, where r is the interest rate. If the future value of the investment is $9317.00 when the rate is 10%, what rate gives a future value of $8575.30? Round to the nearest whole percent.
A. 6% B. 8% C. 7% D. 9%
Mathematics
If possible, evaluate the expression by hand. If not, approximate the answer to the nearest hundredth. Variables represent any real number.-
A. -10 B. 15.811 C. 10 D. -15.811
Mathematics