Achild who is 5 ft tall is standing 10 feet from the base of a tree. the child’s shadow has a length of 3 feet. how tall is the tree ?

Negative 5 1/12 + negative 4 1/4 + 6 3/4

List x1, x2, x3, x4 where xi is the left endpoint of the four equal intervals used to estimate the area under the curve of f(x) between x = 4 and x = 6. a 4, 4.5, 5, 5.5 b 4.5, 5, 5.5, 6 c 4.25, 4.75, 5.25, 5.75 d 4, 4.2, 5.4, 6

The coordinates r(1, -3), s(3, -1) t(5, -7) form what type of polygon? a right triangle an acute triangle an equilateral triangle an obtuse triangle