Find the equation of the line passing through the indicated two points in standard form.(5, -3) and (0, 5)
A. 8x + 5y = 25
B. -8x + 5y = -25
C. 8x - 5y = -25
D. -8x + 5y = 25
Answer: A
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Find an equation of variation in which the following are true.x varies inversely as the square of y, and x = 20 when y = 12.
A. x = 2880y2
B. x = 
C. x = 
D. x = 
The supply equation for a certain brand of radio is given by 
, where p is expressed in dollars/bushel and x, the quantity demanded each year, is measured in billions of bushels. The economists are forecasting a harvest of 1.8 billion bushels for the year, with a maximum error of 15% in their forecast.
?
Determine the corresponding maximum error in the predicted price per bushel of soybeans. Round the answer to the nearest percent.
?
A. 14% B. 7% C. 61% D. 12% E. 24%
Solve the problem.Determine whether the ordered triple (2, 9, -4) is a solution of the system of equations.2x - 5y - 9z = -5 x + y + z = 73x - y + 5z = 35
A. No B. Yes
Solve the problem.Ron takes two hr more time than Paul to mow the lawn. Working together they can mow the lawn in 
. How long does it take each of them working alone?
A. Paul: 9.1 hr; Ron: 11.1 hr B. Paul: 8.3 hr; Ron: 10.3 hr C. Paul: 8 hr; Ron: 10 hr D. Paul: 10 hr; Ron: 12 hr