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galina1969 [7]
3 years ago
10

I really need help with this. Can you help me please?

Mathematics
1 answer:
omeli [17]3 years ago
7 0

Answer:

Solve the equation using the method of completing the square.

Step-by-step explanation:

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Step-by-step explanation:

2

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3 years ago
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Tanaysha was trying to solve 72-8. She said that she could do 72+2=74 and 74-10 to solve. What strategy did she use?
Ostrovityanka [42]

Answer:

Tanaysha replace 8 by ( 10 -2) to solve the given expression.

Step-by-step explanation:

Here, the given expression to be solved  is:

72  -   8   ..........  (1)

Now, as we know: 8 = 10 - 2

Replacing the value of 8 with ( 10 - 2), we get:

72  -   8

= 72  -   (10 - 2)

= 72 - 10 + 2  

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4 0
4 years ago
A cone and a cylinder have the same height and their bases are congruent circles
Anettt [7]

Answer:

30cm^3

Step-by-step explanation:

the volume of a cylinder is given by:

v_{cylinder}=\pi r^2 h

and the volume of a cone is given by:

v_{cone}=\frac{\pi r^2 h}{3}

since both have the same height and radius, we can solve each equation for r^2h (because this quantity is the same in both figures) and then match the expressions we find:

from the cylinder's volume formula:

r^2h=\frac{v_{cylinder}}{\pi}

and from the cone's volume formula:

r^2h=\frac{3 v_{cone}}{\pi}

matching the two previous expressions:

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we solve for the volume of a cone v_{cone}:

v_{cone}=\frac{\pi v_{cylinder}}{3\pi} \\\\v_{cone}=\frac{v_{cylinder}}{3}

substituting the value of the cylinder's volume v_{cylinder}=90cm^3

v_{cone}=\frac{90cm^3}{3} \\\\v_{cone}=30cm^3

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Step-by-step explanation:

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3 years ago
What is the following product? Assume d&gt;0 3vd•3vd•3vd
arlik [135]

Answer:

A. d

Step-by-step explanation:

If you find the 3rd square root or whatever its called, and multiply it by itself again 3 times, You end up with d again.

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