Which shows 60^2 − 40^2 being evaluated using the difference of squares method?
1 answer:
The difference of squares method uses the following formula:
Answer A has the squares multiplied out, then put into the formula, which is incorrect.
Answer B does not use this formula, as the squares are multiplied out and solved without using this method.
Answer C subtracts in terms of the power, which is completely wrong.
The answer is D.
Answer A has the squares multiplied out, then put into the formula, which is incorrect.
Answer B does not use this formula, as the squares are multiplied out and solved without using this method.
Answer C subtracts in terms of the power, which is completely wrong.
The answer is D.
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Answer:
Answer Cone Z and Cylinder Y.
Step-by-step explanation:
The relationship between the volume of the cone and the volume of the cylinder with the same height and same base is the volume of the cone is 1/3 of the volume of the cylinder.
The formula for the volume of the cone is :
V = 1/3πh
The formula for the volume of the cylinder is :
V = πh
Let be the height of the cylinder Y. Therefore the height of the cone Z is 3h, when we put it into the formula we get :
V = 1/3π (3h) = π
h
Therefore Cone Z and Cylinder Y have same volume.