Solve the problem.The graph shows the amount of potential energy V(x) (in arbitrary energy units) stored in a large rubber band that is stretched a distance of x inches beyond its relaxed length.
The magnitude of the force required to hold the rubber band at the position 
is the derivative of the potential energy with respect to x, evaluated at the point 
Estimate the force required to hold the band at a stretched
position 
(Hint: the force in this problem has units of "energy units per inch".)
A. 3.7 energy units per inch
B. 2.6 energy units per inch
C. 4.4 energy units per inch
D. 0.4 energy units per inch
Answer: B
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Solve the problem. Assume the x-axis is horizontal, the positive y-axis is vertical (opposite g), the ground is horizontal, and only the gravitational force acts on the objects. A projectile is launched from level ground at a launch angle of 26° and an initial speed of 48 m/sec. How far away from the launch point does the projectile hit the ground?
A. ? 60 m B. ? 230 m C. ? 290 m D. ? 185 m
Use the information given in the table to solve the problem.The table gives the value of a 1957 Chevy BelAire in #2 condition for selected years.
What is the percent change (to the nearest tenth of a percent) in the value of a 1957 Chevy BelAir in #2 condition from 1982 to 1986.
A. 24.5 % B. 29.8 % C. 25.4 % D. 20.8 %
Solve the problem.Determine a polynomial that represents the area of a rectangle having length 
and width 
.
A. x2 - 5x - 24 B. x2 + 5x + 24 C. x2 + 5x - 24 D. 4x + 10
The number of laptop computers sold each month for one year was recorded by an electronics store. The results were 15, 17, 15, 25, 26, 7, 9, 15, 20, 23, 27, and 15. Calculate the mean number of laptop computers sold per month. Round your answer to one decimal place.
A) 16.0 laptop computers B) 19.2 laptop computers C) 17.8 laptop computers D) 15.2 laptop computers E) 15.0 laptop computers