Which equation models the statement shown?

y varies directly with x and y = 25 when r = 5.

Find the arc length parameter along the given curve from the point where tequals=0 by evaluating the integral s(t)equals=integral from 0 to t startabsolutevalue bold v left parenthesis tau right parenthesis endabsolutevalue d tau∫0tv(τ) dτ. then find the length of the indicated portion of the curve r(t)equals=1010cosine tcost iplus+1010sine tsint jplus+88t k, where 0less than or equals≤tless than or equals≤startfraction pi over 3 endfraction π 3.

Find the number of positive three-digit even integers whose digits are among 9, 8, 7,5, 3, and 1.

What’s -11-33k and factor each expression completely