Find the circumference and area of a circle having the given diameter or radius. Use 3.14 for ?. Round your results to the nearest tenth.d = 4
in.
A. C ? 7.1 in., A ? 28.3 in.2
B. C ? 14.1 in., A ? 14.1 in.2
C. C ? 7.1 in., A ? 63.6 in.2
D. C ? 14.1 in., A ? 15.9 in.2
Answer: D
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Given the series  FIGURE 1.png)
estimate the error in using the partial sum  Figure 2.png)
by comparison with the series  Figure 3.png)
 multiple choice.png)
Find n for the given value of an in the arithmetic sequence.an = 1640; 1, 2, 3, . . .
A. n = 820 B. n = 39 C. n = 3280 D. n = 40
Solve the problem.A pier 1250 meters long extends at an angle from the shoreline. A surveyor walks to a point 1500 meters down the shoreline from the pier and measures the angle formed by the ends of the pier. If is found to be 53°. What acute angle (correct to the nearest 0.1°) does the pier form with the shoreline? Is there more than one possibility? If so, how can we know which is the correct one?
What will be an ideal response?
Solve.A ranger in fire tower A spots a fire at a direction of 40°. A ranger in fire tower B, which is 28 miles directly east of tower A, spots the same fire at a direction of 116°. How far from tower A is the fire?
A. 33 miles B. 22 miles C. 24 miles D. 26 miles