Pizza Casbah is known for their large pizzas. The diameter of the pizza is 18 inches. Pizza Casbah recently began a MEGA-PIZZA challenge where two people must complete a 30-inch pizza to get their name on the wall of fame. Greg can eat an entire large (18-inch) pizza by himself and believes that if his partner can eat the same amount, they should be able to eat a 36-inch pizza. Explain why you agree or disagree. Greg knows the maximum he can eat is the amount of pizza in an 18-inch pizza. How many square inches of pizza will his partner need to eat in order for them to win the challenge?

step-by-step explanation:

26?

step-by-step explanation:

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15