Solve the proportion.
= 
A. - 
B. 
C. 144
D. - 
Answer: A
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Solve the problem by writing an appropriate system of equations and using the inverse of the coefficient matrix to solve the system.A grain dealer sold to one customer 5 bushels of wheat, 2 of corn, and 3 of rye, for $39.60; to another, 2 of wheat, 3 of corn, and 5 of rye, for $34.80; and to a third, 3 of wheat, 5 of corn, and 2 of rye, for $33.60. Which of the grains was the cheapest?
A. Wheat B. Wheat and rye (tie) C. Corn and rye (tie) D. Corn
Represent the fraction as a decimal by using the long-division algorithm.
A. 2.0
B. 2.0
C. 2.08
D. 2.09
Determine the period of the function.y = tan 4t
A. ?
B. 
C. 
D. 
Find the acute angle between the lines.8x - 6y = -6 and 6x + 6y = 4
A. 0.1419 radians B. 0.1414 radians C. 3.000 radians D. 1.429 radians