Solve.The distance D that a spring is stretched by a hanging object varies directly as the weight W of the object. If a 4-kg object stretches a spring 35 cm, how far will a 27-kg weight stretch the spring?
A. 236.25 cm
B. 66 cm
C. 8.75 cm
D. 3.0857 cm
Answer: A
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Provide an appropriate response.L = 2C + 1.57(D + d) + 
will determine the length of a cross belt that goes around two pulleys, where C is the distance between the centers of the pulleys, D is the diameter of one pulley, and d is the diameter of the second pulley. Find the length of the belt if the distance between the centers of the pulleys is 28 in., the diameter of one pulley is 18 in., and the diameter of the other pulley is 8 in. Round to the nearest inch.
A. 97 in. B. 98 in. C. 101 in. D. 103 in.
Find the x-intercepts of the graph of each equation.y = (6x - 2)(x + 1)
A. 
, (0, 0)
B. 
, (-1, 0)
C. 
, (1, 0)
D. 
, (-1, 0)
Use the quotient rule to simplify the expression.
A. 
B. 9
C. -9
D. 
Solve the problem.A population of ants, y, living in a colony grows at a rate 
, where t is time in weeks. The initial population is 1000 insects. Using Euler's method with 
what is the number of ants after 7 weeks?
A. 1377 ants B. 1383 ants C. 1381 ants D. 1380 ants