Find the indicated term by use of the following information. The r + 1 term of the expansion of (a + b)n is given by 
an - r brThe term involving b9 in (a + b)12
A. 495a3b9
B. 220a3b9
C. a3b9
D. 1980a3b9
Answer: B
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In the diagram below, angle A is in standard position. Find sin A.
?
?
?
A. 
B. ?
C. ?
D. ?
E. ?
The information below refers to triangle ABC.
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?
?
Find all the missing parts.
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Apply the rules regarding the use of significant digits after all computations are complete.
?
A. ?B? = 27°, ?b? = 2.14 ft, c = 8.33 ft B. B? = 26°, ?b? = 2.04 ft, c = 4.21 ft C. B? = 26°, ?b? = 2.04 ft, c = 4.41 ft D. B? = 24°, ?b? = 9.03 ft, c = 8.33 ft E. ?B? = 27°, ?b? = 2.14 ft, c = 4.41 ft
Use the vertical line test to determine if the graph is a function.
A. Yes B. No
Use the Trapezoidal Rule to find Tn using the indicated value of n. Give answer to three decimal places.
; n = 4
A. T4 = 4.013 B. T4 = 12.794 C. T4 = 6.397 D. T4 = 3.198