Solve: 
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Use a linear model to solve the application problem.The amount that a spring is stretched when a load is applied varies directly with the amount of the load. If a load of 60 pounds stretches a spring 4 inches, how much will the spring stretch if a load of 
is applied?
A. 6.2 inches B. 108 inches C. 3.1 inches D. 78 inches
Mathematics
Find the exact value of the expression in degrees without using a calculator or table.cos-1 
A. 45° B. 315° C. 330° D. 30°
Mathematics
Find the real solutions of the equation.2x3 - x2 - 14x + 7 = 0
A. {2, 
, -
}
B. {-2, 
, - 
}
C. 
D. 
Mathematics
Perform the indicated operation. Round the result to the nearest thousandth if necessary.9.98 - 29.15
A. -9.17 B. 19.17 C. 39.13 D. -19.17
Mathematics