Use a special product formula to simplify.(-2x - 3)2
A. -2x2 + 9
B. 4x2 + 12x + 9
C. 4x2 + 9
D. -2x2 + 12x + 9
Answer: B
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Solve the problem.The surface area of a hollow cylinder (tube) is given by 
where h is the length of the cylinder and R1 and R2 are the outer and inner radii. If h, R1, and R2 are measured to be 6 inches, 6 inches, and 10 inches respectively, and if these measurements are accurate to within 0.1 inches, estimate the maximum possible error in computing S.
A. 25.13 B. 21.36 C. 13.82 D. 17.59
Evaluate the integral.
A. 
B. 1170
C. 
D. 234
Provide an appropriate response.What are the most pleasing combinations of notes?
A. consonant tones B. fourths C. fifths D. first harmonics
Find all cube roots of the complex number. Leave answers in trigonometric form.-125i
A. 5 cis 90°, 5 cis °210, 5 cis 330° B. 5 cis 30°, 5 cis °60, 5 cis 90° C. 5 cis 90°, 5 cis °180, 5 cis 270° D. 5 cis °210, , 5 cis 270°, 5 cis 330°