Use a proportion to solve the problem.It takes Sarah 14 minutes to type and spell check 6 pages of a manuscript. Find how long it takes her to type and spell check 45 pages. Round answers to the nearest whole number if necessary.
A. 14 min
B. 19 min
C. 630 min
D. 105 min
Answer: D
Mathematics
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Solve the equation. If the solutions involve square roots, give both the exact solutions and the approximate solutions to three decimal places.
= 
A. No solution B. 2, -6 C. 0, 36 D. 0, - 3
Mathematics
Use transformations to graph the function.y = -4 cos (x - 
)
A. 
B. 
C. 
D. 
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The letters r and ? represent polar coordinates. Write the equation using rectangular coordinates (x, y).r = 
A. y2 = 10x - 25 B. x2 = 25 - 10y C. y2 = 25 - 10x D. x2 = 10y - 25
Mathematics
Find all specified roots.Cube roots of 1.
A. 1, - 
+ 
i, - 
- 
i
B. -1, 1
C. 1, 
+ 
i, - 
+ 
i
D. 1, 
- 
i, - 
- 
i
Mathematics