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2 years ago

What is the identity property

1 answer:

Montano1993 [528]2 years ago

3 0

The identity property shows us that any number that adds zero to itself stays itself. The identity for multiplication tells us that any number multiplied by one is itself.

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ICE Princess25 [194]

Answer:

Step-by-step explanation:

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2 years ago

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The ratio of the height of two similar pyramids is 4:7. The volume of the smaller pyramid is 1,331cm, to the nearest whole numbe

IRISSAK [1]

Answer:

The volume of the larger pyramid is equal to $7,133\ cm^{3}$

Step-by-step explanation:

step 1

Find the scale factor

we know that

If two figures are similar, then the ratio of its corresponding sides is equal to the scale factor

Let

z----> the scale factor

In this problem, the ratio of the height is equal to the scale factor

$z=\frac{4}{7}$

step 2

Find the volume of the larger pyramid

we know that

If two figures are similar, then the ratio of its volumes is equal to the scale factor elevated to the cube

Let

z----> the scale factor

x----> volume of the smaller pyramid

y----> volume of the larger pyramid

$z^{3}=\frac{x}{y}$

we have

$z=\frac{4}{7}$

$x=1,331\ cm^{3}$

substitute

$(\frac{4}{7})^{3}=\frac{1,331}{y}\\ \\(\frac{64}{343})=\frac{1,331}{y}\\ \\y=343*1,331/64\\ \\y=7,133\ cm^{3}$

8 0

2 years ago

I need this asap please

Sergeeva-Olga [200]

i think c might be the right answer

6 0

3 years ago

Give your own example of an irrational number and explain why the number you chose is irrational

marishachu [46]

Definition
An irrational number is a number that cannot be expressed in as a fraction. It has decimal expression that does not terminate.

An example will be √2.

Reason:
(1) √2 cannot be expressed as a fraction form
(2) √2 has decimals that does not terminate

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2 years ago

Find the value of x. 600x = 360000

Kruka [31]

600x = 360000
So, the x should mean 'times'.
600 x 600 = 360000.
x = 600.

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2 years ago

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