Write the expression in the form a + bi, where a and b are real numbers.
A. -2 - 3
B. -2 - 
i
C. 2 + 
i
D. -2 + 
i
Answer: D
Mathematics
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Reverse the order of integration and then evaluate the integral.
A. 3(1 - cos 36)
B. 
(1 - cos 36)
C. 
D. 3
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Solve the problem.Find the supplement of 116°.
A. 244° B. 154° C. Not possible D. 64°
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Solve the problem.Fred took his mother out to dinner for her birthday. The bill for the food was $63.20, the bill for drinks was $15.25. How much was Fred's 10% tip, rounded to the nearest dollar?
A. $6 B. $2 C. $96 D. $8
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Use sum-to-product identities to rewrite the expression as a product.cos 61° + cos 35°
A. 2 sin 48° cos 13° B. -2 sin 48° sin 13° C. 2 cos 48° cos 13° D. 2 cos 48° sin 13°
Mathematics