Y=-x^2+10x+24 for -1≤ x ≤ 3 (i) please show step by step of subdiving the interval [-1,3] into four equal parts

(ii) please show step by step of constructing upper and lower rectangles for each subinterval

(iii) summing the areas of the upper and lower rectangles

and (b)

PLEASE HELPP

Using the quadratic formula find the zeros of the given polynomial -5x^2+3x-11

Rosy waxes 2/3 of her car with 1/4 bottle of car wax. at this rate, what fraction of the bottle of car wax will rosey use to wax her entire car

Agroup of students want to create a garden. they do not know the exact measurements but they propose using a variable to represent the length and width of the garden. the length of the garden is 10 feet longer than double the width. use a single variable to write algebraic expressions for both the length and width of the garden. write an algebraic expression for the area of the garden. use mathematical terms to describe this expression.