Chapter 4: Problem 90
Use a graphing utility to graph the function. $$f(x)=\pi \arcsin (4 x)$$
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Chapter 4: Problem 90
Use a graphing utility to graph the function. $$f(x)=\pi \arcsin (4 x)$$
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Navigation An airplane flying at 600 miles per hour has a bearing of \(52^{\circ} .\) After flying for 1.5 hours, how far north and how far east will the plane have traveled from its point of departure?
Converting to \(\mathrm{D}^{\circ} \mathrm{M}^{\prime} \mathrm{S}^{\prime \prime}\) Form \(\quad\) Convert each angle measure to degrees, minutes, and seconds without using a calculator. Then check your answers using a calculator. (a) \(-345.12^{\circ}\) (b) \(-3.58^{\circ}\)
Angle of Elevation The height of an outdoor basketball backboard is \(12 \frac{1}{2}\) feet, and the backboard casts a shadow \(17 \frac{1}{3}\) feet long. A. Draw a right triangle that gives a visual representation of the problem. Label the known and unknown quantities. B. Use a trigonometric function to write an equation involving the unknown angle of elevation. C. Find the angle of elevation of the sun.
Sketch a graph of the function. $$h(v)=\arccos \frac{v}{2}$$
A privately owned yacht leaves a dock in Myrtle Beach, South Carolina, and heads toward Freeport in the Bahamas at a bearing of \(S 1.4^{\circ} \mathrm{E}\) The yacht averages a speed of 20 knots over the 428 -nautical-mile trip. (a) How long will it take the yacht to make the trip? (b) How far east and south is the yacht after 12 hours? (c) A plane leaves Myrtle Beach to fly to Freeport. What bearing should be taken?
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