Phyllis riding his bike. he rides 25 miles in 2 hours, 37.5 mi and 3 hours, and 50 mi and 4 hours. find the constant of proportionality and write an equation to describe the situation.​

Determine whether the following statements are true and give an explanation or counterexample. bold a. when using the shell method, the axis of the cylindrical shells is parallel to the axis of revolution. bold b. if a region is revolved about the y-axis, then the shell method must be used. bold c. if a region is revolved about the x-axis, then in principle it is possible to use the disk/washer method and integrate with respect to x or the shell method and integrate with respect to y.

Find the cosine function that is represented in the graph.

Isaac wants the equation below to have no solution when the missing number is placed in the box. which number should he place in the box?