Chapter 4: Problem 44
Convert the angle measure from radians to degrees. Round to three decimal places. $$\frac{15 \pi}{8}$$
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Chapter 4: Problem 44
Convert the angle measure from radians to degrees. Round to three decimal places. $$\frac{15 \pi}{8}$$
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The circular blade on a saw rotates at 5000 revolutions per minute. (a) Find the angular speed of the blade in radians per minute. (b) The blade has a diameter of \(7 \frac{1}{4}\) inches. Find the linear speed of a blade tip.
Sketch a graph of the function. $$f(x)=\arctan 2 x$$
Graph the functions \(f\) and \(g .\) Use the graphs to make a conjecture about the relationship between the functions. $$f(x)=\cos ^{2} \frac{\pi x}{2}, \quad g(x)=\frac{1}{2}(1+\cos \pi x)$$
A sprinkler on a golf green sprays water over a distance of 15 meters and rotates through an angle of \(140^{\circ} .\) Draw a diagram that shows the region that the sprinkler can irrigate. Find the area of the region.
Area of a Sector of a Circle Find the area of the sector of a circle of radius \(r\) and central angle \(\boldsymbol{\theta}\). $$r=12 \text { millimeters, } \theta=\frac{\pi}{4}$$
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