Find the exact value of the trigonometric expression without the use of a calculator.sin 200° cos 80° - cos 200° sin 80°
A. 
B. - 
C. 
D. - 
Answer: C
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Answer the question about the given function.Given the function f(x) = x2 + 4x - 96, list the x-intercepts, if any, of the graph of f.
A. (-12, 0), (1, 0) B. (-12, 0), (8, 0) C. (12, 0), (8, 0) D. (12, 0), (-8, 0)
Solve the problem.A radio transmission tower is 230 feet tall. How long should a guy wire be if it is to be attached 10 feet from the top and is to make an angle of 32° with the ground? Give your answer to the nearest tenth of a foot.
A. 271.2 ft B. 415.2 ft C. 259.4 ft D. 434.0 ft
Write the number in scientific notation.85,000
A. 8.5 × 10-4 B. 8.5 × 10-5 C. 8.5 × 104 D. 8.5 × 105
Use Euler's method to approximate the indicated function value to three decimal places using 
= 4x + 3; y(1) = 2; find y(1.4)
A. 2.770 B. 3.080 C. 3.630 D. 5.040