Laura wants to know the volume of her gold ring in cubic centimeters. She gets a rectangular glass with a base 7\text{ cm}7 cm7, start text, space, c, m, end text by 4.5\text{ cm}4.5 cm4, point, 5, start text, space, c, m, end text and fills the glass 8.8\text{ cm}8.8 cm8, point, 8, start text, space, c, m, end text high with water. Laura drops her gold ring in the glass and measures the new height of the water to be 9.2\text{ cm}9.2 cm9, point, 2, start text, space, c, m, end text.
What is the volume of Laura's ring in cubic centimeters?

answer:   n ≤ -3 or n < -5

step-by-step explanation:

-5 + 2n ≥ -11

+5             +5

2n ≥ -6

2/2 ≤ -6/2

n ≤ -3

-6 - 10n > 44

+6           +6

-10n > 50

-10/-10 50/-10

n < -5

9x

b) k’(6, 4); l’(3, 3)

step-by-step explanation:

a 270° clockwise rotation maps every point (x, y) to (y, -x). (it negates the x-coordinate and then switches it and the y-coordinate.)

this means the endpoints of the side congruent to kl, k' and l', would be mapped as:

k'(-4, 6)→(6, 4)

l'(-3, 3)→(3, 3)

the answer is 15.50 for one mile

b) is slope: 0   y- intercept 15.5