Solve the problem.Two cars leave an intersection. One car travels north; the other east. When the car traveling north had gone 9 miles, the distance between the cars was 3 miles more than the distance traveled by the car heading east. How far had the eastbound car traveled?
A. 12 miles
B. 9 miles
C. 15 miles
D. 18 miles
Answer: A
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Provide an appropriate response.Consider the quartic function f(x) = ax4 + bx3 + cx2 + dx + e, a ? 0. Must this function have at least one critical point? Give reasons for your answer. (Hint: Must for some x?) How many local extreme values can f have?
What will be an ideal response?
Solve the exponential equation. For irrational solutions, round to four decimal places.(73x)(2x + 1) = 7
A. {0.4747} B. {0.1918} C. {0.7374} D. {0.2374}
Solve the problem.In a certain city, the cost of a taxi ride is computed as follows: There is a fixed charge of $2.80 as soon as you get in the taxi, to which a charge of $2.15 per mile is added. Find an equation that can be used to determine the cost, C(x), of an x-mile taxi ride, and use this equation to find the cost of a 7-mile taxi ride.
A. $18.75 B. $17.85 C. $18.03 D. $17.73
Solve the problem.Bob has a machine that measures the watts of light bulbs. The first light bulb he measured was The second light bulb he measured was 4.97 more watts than the first light bulb. The third light bulb he measured was 4.57 fewer watts than the first light bulb. How many watts were there in all three light bulbs?
A. 36.49 watts B. 90.39 watts C. 71.31 watts D. 81.25 watts