Determine whether the following curve uses arc length as a parameter. If not, find a description that uses arc length as a parameter. = 1+√7320 r(t) = cost, 1 √2 cos t, sin for Osts4 Select the correct choice below and, if necessary, fill in the answer boxes to complete your choice. OA. r(t) does not use arc length as a parameter. A description of the curve that uses arc length as a parameter is r(s) = for Sss (Type exact answers, using radicals as needed.) B. r(t) uses arc length as a parameter.

18. Which point is on the sine curve? a. (540°,- 1) b. (540°,0) c. (-540°, –1) d. (540°, 1) ant 1Our O

3. If y = 4cos x + sin 2x, what is the slope of the curve when x = 2 radians? A. -2.21 B.-4.94 C.-3.95 D. 2.21

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Use the drawlng tool to form the correct answers on the provided graph. A student observes that the motlon of a welght oscllating up and down on a spring can be modeled by the following equation, where h Is the welght's helght above the ground, in meters, and tis the time, In seconds. A(e) = = 0.5 - sin(mt + ) + 1 On the graph, plot the polnts where helght, h(t), Is at a maximum. Drawing Tools E( Click on a tool to begin drawing. * Delete Undo Reset Select Point h(t) 2.0- 1.5 1.0 05 + ghts reserved.

Consider an angle with an initial ray pointing in the 3-o'clock direction that measures 0 radians. The terminal point on a circle centered at the angle's vertex is h radius lengths to the right of the circle's center and v radius lengths above the circle's center. The slope of the terminal ray of the angle is m. Match each of the following inputs/outputs with their corresponding variable. (You can use each variable once, more than once, or not at all.) -1 The input of the cos function а. V The output of the cos - 1 function b. h The input of the sin - 1 function С. т d. 0 | The output of the sin- function 1 v The input of the tan function v The output of the tan' - 1 function

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