Solve the variation problem.The distance that a spring is stretched by a hanging object varies directly as the mass of the object. If an object with a mass of 4 kg stretches a spring 25 cm, find the stretch when the object has a mass of 15 kg.
A. 44 cm
B. 2.4 cm
C. 4.15 cm
D. 93.75 cm
Answer: D
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Solve the problem. Round your answer to 2 decimal places when necessary.At an intersection in Normal, Illinois, there were 156 vehicle accidents with 255,590 vehicles passing through the intersection. Determine the accident rate per 10,000 vehicles.
A. 1,638,397.44 accidents per 10,000 vehicles B. 6.1 accidents per 10,000 vehicles C. 255.59 accidents per 10,000 vehicles D. 0 accidents per 10,000 vehicles
Determine whether the equation is an identity. If it is an identity, prove it.
= cos x + cot x
What will be an ideal response?
Solve and graph the solution set on a number line.5 + 
? 8
A. [-8, 4]
B. (-?, -8] ? [4, ?)
C. (-?, -4] ? [8, ?)
D. [-4, 8]
Solve the problem.The Blanchards have saved $21,545 for a down payment on a house. If a 15
% down payment is required, what price house can they buy?
A. $333,900 B. $3339 C. $139,000 D. $1390