Solve the problem.The present value that will give a future value S in 4 years with interest compounded annually varies inversely as the fourth power of 1 + r, where r is the annual interest rate. If the present value of $3.71 gives a future value of $5000, what would be the present value of $10,000? Round to the nearest dollar.
A. $45
B. $7
C. $8
D. $5
Answer: B
Mathematics
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Find the torsion of the space curve.r(t) = (6t sin t + 6 cos t)i + (6t cos t) - 6 sin t)j - 5k
A. ? = -1 B. ? = 1 C. Undefined D. ? = 0
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Use the power-reducing identities to rewrite the expression that does not contain trigonometric functions of power greater than 1.sin 
cos 
(1 - 2 sin2 x)
A. 
B. 
C. 
D. 
Mathematics
Use long division to determine whether the binomial is a factor of f(x).f(x) = x3 - 3x2 - 40x + 84; x + 6
A. Yes B. No
Mathematics
Solve the exponential equation. Use a calculator to obtain a decimal approximation, correct to two decimal places, for the solution.e4x = 6
A. 7.17 B. 0.45 C. 0.23 D. 4.08
Mathematics