Find the length of the third side of the right triangle. Give an exact answer and, where appropriate, an approximation to three decimal places.
A. b = 
ft; b ? 22.804 ft
B. b = 
ft; b ? 11.314 ft
C. b = 128 ft
D. b = 
ft; b ? 2.000 ft
Answer: B
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Find all the roots of the complex number. Put answers in standard form.Cube roots of -8j
A. 2j, - 
+ j, - 
+ j
B. 2j, - 
- j, 
- j
C. -2j, 
- j, 
- j
D. -2j, 
+ j, 
+ j
Use the periodic compound interest formula to solve the problem.Find the accumulated value of an investment of $6000 at 4% compounded semiannually for 8 years. Round to the nearest cent.
A. $7920.00 B. $8236.71 C. $7029.96 D. $8211.41
Describe the graph of the polar equation.r = 
A. Line with slope 9 and y-intercept (0, -8) B. Ellipse centered at origin with intercepts (±8, 0) and (0, ±1) C. Hyperbola passing through (9, 8) D. Line with slope 8 and y-intercept (0, -9)
Decide whether the ordered pair is a solution of the given system.(5, -1)x + y = -6x - y = -4
A. Yes B. No