B.
first set it equal to zero:
3x^2-36 = 0
add 36 to both sides:
3x^2=36
divide by 3 to both sides:
x^2=12
take the square root of 12 and you get factors of 2,2, and 3, so you're answer is b.
Answer:
77.03 cm²
Step-by-step explanation:
The appropriate formulas are ...
CSA = Ch . . . . . curved surface area, C=circumference, h=height
where
C = πd
or
d = C/π
__
Here, we have ...
h = 2d = 2C/π
C = 11 cm
so the curved surface area is ...
CSA = (11 cm)(2(11 cm)/π) = 242/π cm² ≈ 77.03 cm²
To answer this question you would need to find the surface area of this rectangular prism. In order to find the surface area you would find the areas of all six faces. The top and bottom faces would both be square with an area of 5.29 (2.3x 2.3)ft.². All for lateral faces would have areas of 8.28 (2.3x3.6)ft.². Adding these for faces along with the other two faces would give you a total surface area of 43.7 ft.². If you take away the bottom face which is not painted you will have a surface area that is going to be painted of 38.41 ft.². To determine the percentage of this rectangle or prism that is going to be painted, create a ratio of the amount painted to the total amount surface area. Divide these to create a decimal and then converted to a percent. 38.41/43.7=0.879 (87.9%).
Answer:
3T=504
Step-by-step explanation:
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