Perform the operation using trigonometric form. Write the answer in the form a + bi(6
- 6i)(2i)
A. 1 + 
i
B. 12
+ 12i
C. 12 + 12
i
D. 12
i
Answer: C
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Write the equation of the quadratic function whose graph is a parabola containing the given points.(0, -1), (4, 51), (-2, 9)
A. y = 3x2 + x - 2 B. y = 2x2 + x - 1 C. y = 3x2 - x - 1 D. y = 3x2 + x - 1
In a survey it was determined that the demand equation for VCRs is given by
?
?
The demand equation for blank VCR tapes is given by
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?
where p and q denote the unit prices, respectively, and x and y denote the number of VCRs and the number of blank VCR tapes demanded each week. Determine whether these two products are substitute, complementary, or neither.
?
A. complementary
B. neither
C. substitute
Determine whether the given sequence is arithmetic, geometric, or neither. If the sequence is arithmetic, find the common difference; if it is geometric, find the common ratio.
A. Arithmetic; d =3 B. Geometric; r = - 1 C. Arithmetic; d = - 1 D. Neither
Refer to right triangle ABC with 
. Solve for all the missing parts using the given information.
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?
Round the answers to the nearest tenth if necessary.
?
A. 
B. ?
C. ?
D. ?
E. ?