She is losing $20, so it indicates a negative number when really it is positive
V = 1/3 x pi x r^2 x h
V = 1/3 x pi x 36 x 11
V = 12 x pi x 11
V = 132 x pi
V = 414.7cm^3 (1dp)
Answer:
$ 256
Step-by-step explanation:
square footage of door = 8 x 4 = 32 ft^2
32 ft^2 * 8 dollar /ft^2 = $ 256
Answer:
y=4,x=1
Step-by-step explanation:
4x+y=8
x+y=5
subtract equation 2 from equation 1
3x + 0=3
3x=3
divide both sides by 3
x=1
substitute for x=1 in equation 2
x+y=5
1+y=5
y=5-1(collecting like terms)
y=4
Answer:
8 units If the area of the squares are 32 units^2, we have that: Area = Side * Side Side^2 = 32 Side = sqrt(32) = 5.657 units So as the squares are adjacent to two sides of the triangle, we have that the triangle has two sides of 5.657 units As it is a right triangle, we can use the Pythagoras' theorem: c^2 = a^2 + b^2 c^2 = 5.657^2 + 5.657^2 c^2 = 64 c = 8 units
Step-by-step explanation: