Solve the problem.Each gallon of shingle stain covers 120 square feet. How many gallons are needed to cover 840 square feet?
A. 8 gallons
B. 5 gallons
C. 7 gallons
D. 6 gallons
Answer: C
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Find the values of x for which the given function is concave up, the values of x for which the function is concave down, and any points of inflection.y = x2 - 2x + 7
A. Concave down for x < 1, concave up for x > 1, point of inflection at (1, 6) B. Concave up for all x, no points of inflection C. Concave down for all x, no points of inflection D. Concave up for x < 1, concave down for x > 1, point of inflection at (1, 6)
Use scientific notation to calculate the answer to the problem. Write the answer in scientific notation.
A. 44.8 × 107 B. 4.48 × 106 C. 44.8 × 108 D. 4.48 × 108
Graph the function.f(x) = 
A. 
B. 
C. 
D. 
Nancy's Chocolates estimates that the elasticity of demand for its dark chocolate truffles is
?
?
wherepis the price per pound. Nancy's sells 19 pounds of truffles per week when the price is $23 per pound. Find the formula expressing the demandqas a function ofp. Recall that the elasticity of demand is given by
.
?
NOTE: Round the value of the constant in your answer to four decimal places.
?
A. 
B. ?
C. ?
D. ?
E. ?