Help! Thank you so much <3

205

Step-by-step explanation:

volume of cone = πr^2h/3

π=3.14   (r)radius= 4 (half of diameter)  h(height)=11

volume of this cone is 184.21cm^3

one gallon lemonade is 3785cm^3.  multiply this by ten since there are ten gallons which is 37,850

divide this by 184.21 since that is the volume of one cup.

you get 205

205

Step-by-step explanation:

I finally got this answer after 20 minutes of deciding. plz hope u give me brain.

1010: 3030

is it i think

(b) 240

step-by-step explanation:

first, we use the pythagorean formula using the given side lengths to find x. then we use x to find the side lengths. then we add the side lengths to find the perimeter.

pythagorean theorem formula:

a^2 + b^2 = c^2

(x - 20)^2 + (x - 40)^2 = x^2

x^2 - 40x + 400 + x^2 - 80x + 1600 = x^2

x^2 -120x + 2000 = 0

(x - 100)(x - 20) = 0

x - 100 = 0 or x - 20 = 0

x = 100 or x = 20

we see that the solution x = 20 must be discarded because it will give a negative side length and a side length of 0. the only valid solution is x = 100.

perimeter = sum of the lengths of the sides

perimeter = x + x - 20 + x - 40

perimeter = 3x - 60

replace x with 100.

perimeter = 3(100) - 60

perimeter = 300 - 60

perimeter = 240