Solve the problem.One end of a pool is a vertical wall 16.0 ft wide. What is the force exerted on this wall by the water if it is 7.00 ft deep? The density of water is 62.4 lb/ft3.
A. 3490 lb
B. 48,900 lb
C. 12,200 lb
D. 24,500 lb
Answer: D
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Write an expression in terms of the given variable(s) that represents the indicated quantity.The amount of money in cents in a jar containing n nickels and some dimes and some quarters if there are 3 times as many dimes as nickels and twice as many quarters as dimes.
A. 85x cents B. 175x cents C. 110x cents D. 185x cents
Find the cube root of the number. Approximate the answer to the nearest hundredth whenever appropriate.-1000
A. -31 B. -100 C. 10 D. -10
Write the expression without parentheses.-(2z - 3w + 8y)
A. -2z - 3w + 8y B. -2z + 3w + 8y C. -2z - 3w - 8y D. -2z + 3w - 8y
Solve the problem.An engineer collects data showing the speed s of a given car model and its average miles per gallon. Let f(s) be the average miles per gallon of the car at speed s. Use a graphing calculator to draw the scatterplot. Find and verify an equation of f.
A. f(s) = -0.0063s2 + 0.720s + 5.142 B. f(s) = -6.309s2 + 0.720s + 5.142 C. f(s) = 0.063s2 + 0.720s + 5.142 D. f(s) = -0.631s2 + 0.720s + 5.142