Translate the phrase into a mathematical expression and then find the result.159 miles per 3 hours
A. 159 ? 3; 51 miles per hour
B. 159 ÷ 3; 53 miles per hour
C. 159 ÷ 3; 56 miles per hour
D. 159 ? 3; 55 miles per hour
Answer: B
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Solve.20x2 + 37x + 15 = 0
A. 
, - 
B. - 
, - 
C. - 
, - 
D. 
, 
Translate the problem situation to a system of equations. Do not solve.Sarah Comar's Candy Store sold 15 individual pounds of jelly beans, one kind at $4.27 per pound and the other at $0.87 per pound. In all, $36.85 was taken in for the two types of jelly beans. How many pounds of each kind were sold?
A. x + y = 5.14; 4.27x + 0.87y = $36.85 B. x + y = 15; 4.27x + 0.87y = $36.85 C. x + y = 15; 5.14x + y = $36.85 D. x + y = 36.85; 4.27x + 0.87y = $15
Add or subtract as indicated.(16x + 10xy - 13y) - (8x - 12xy - 17y)
A. 6x - 8xy + 30 B. 8x - 22xy - 30y C. 8x + 22xy + 4y D. 34xy
Find zw or 
as specified. Leave your answer in polar form.z = 1 + iw = 1 - 
iFind 
.
A. 
(cos 15° + i sin 15°)
B. 
(cos 105° + i sin 105°)
C. 
(cos 105° + i sin 105°)
D. 
(cos 15° + i sin 15°)