Decide whether the following problem can be solved using precalculus, or whether calculus is required. If the problem can be solved using precalculus, solve it. If the problem seems to require calculus, use a graphical or numerical approach to estimate the solution.
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A cyclist is riding on a path whose elevation is modeled by the function where x and
are measured in miles. Find the rate of change of elevation when
. Round your answer to two decimal places, if necessary.
?
?
A. calculus, 0.98
B. precalculus, 0.14
C. calculus, 0.14
D. precalculus, 0.98
E. precalculus, 0.39
Answer: B
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Solve the rational equation. =
A. {4, 1} B. {2, 1} C. {4, -1} D. {2, -1}
Perform the operation.Multiply 18 by 52
A. 1036 B. 946 C. 926 D. 936
Provide an appropriate response.
A surveyor has to determine the area of an irregular piece of land. What is the area? (Hint: Construct lines AC and CE.)
A. 8,715 ft2 B. 11,805 ft2 C. 11,296 ft2 D. insufficient information
Find the product.(5r + 4t)4
A. 625r4 + 2000r3t + 2400r2t2 + 2000rt3 + 256t4 B. 625r4 + 2000r3t + 2400r2t2 + 1280rt3 + 256t4 C. 625r4 + 625r3t + 2400r2t2 + 2400rt3 + 256t4 D. 625r4 + 5r3t + 2000r2t2 + 2000rt3 + 256t4