Graph the function. Show at least one period.y = 3 cos 
A. 
B. 
C. 
D. 
Answer: D
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Provide an appropriate response.In oblique triangle ABC, find the indicated part. Round to the nearest tenth. Side a = 2, side c = 1, and angle B = 110°; find side b.
Fill in the blank(s) with the appropriate word(s).
List the terms of the expression. Then identify the coefficient of each term.2y3 - 4y2 - y
A. 2y3, 4y2, y; 2, 4, 1 B. 2y3, -4y2, -y; 2, -4, -1 C. 2y3, -4y2, -y; 2, 4, 1 D. 2y3, -4y2, y; 2, -4, 1
Solve the problem using matrices.A chemist has prepared two acid solutions, one of which is 6% acid by volume, another 10% acid. How many cubic centimeters of each should the chemist mix together to obtain 50 cm3 of a solution that is 
acid.
A. No solution B. 23 cm3 of 6%; 27 cm3 of 10% C. 50 cm3 of 6%; 50 cm3 of 10% D. 4.08 cm3 of 6%; 45.92 cm3 of 10%
Solve the equation.
- 4 = 
A. {4} B. no solution C. {4, -4} D. {-4}