Given f(x)=} (7 – x)2 , what is the value of f(21) ?

Aportion of a hiking trail slopes downward at about an 84° angle. to the nearest tenth of a flot, what is the value of x, the distance the hiker traveled along the path, if he has traveled a horizontal distance of 120 feet? a. 143.3 b. 12.5 c. 120.7 d. 130.2

Which is the absolute value function corresponding to the graph with these characteristics? vertex is at (-2, k) v-shaped graph opens in the downward direction coefficient a is 4 left arm passes through point (-3, -1)

Calculate ∬y da where r is the region between the disks x^2+y^2 < =1 & x^2+(y-1)^2 < =1 show all work. (also explain why you split up the regions)