Solve the quadratic equation by any method.x2 + 12x = 0
A. -12 ± 
B. -1, -12
C. -12, 0
D. 12, 0
Answer: C
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Find the derivative of y with respect to the independent variable.y = 8
A. 
8
B. 
C. 8
ln 8
D. 
8
Solve the problem.A grain dealer sold to one customer 5 bushels of wheat, 2 of corn, and 3 of rye, for $34.20; to another, 2 of wheat, 3 of corn, and 5 of rye, for $42.00; and to a third, 3 of wheat, 5 of corn, and 2 of rye, for $39.00. What was the price per bushel for corn?
A. $2.40 B. $4.50 C. $2.90 D. $4.61
The sides in each pair of figures are proportional. Find the missing length.
A. 161 ft B. 167 ft C. 207 ft D. 184 ft
The following graph shows the ratio of bachelor's degrees earned by women to men from 1960 through 1990. How fast was the ratio changing in the period from 1960 to 1980? From 1980 to 1990?
?
?
A. 0.47/yr from 1960 through 19800.06/yr from 1980 through 1990? B. 0.235/yr from 1960 through 19800.06/yr from 1980 through 1990? C. 0.047/yr from 1960 through 19800.006/yr from 1980 through 1990? D. 0.047/yr from 1960 through 19800.012/yr from 1980 through 1990 E. 0.0235/yr from 1960 through 19800.006/yr from 1980 through 1990?