3 years ago

Without dividing, select the number that is divisible by 3.

Mathematics

1 answer:

Fittoniya [83]3 years ago

6 0

Answer:

The answer is B: 1125

Step-by-step explanation:

I divided it for you and it is the only answer that did not have a decimal.

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Problem1 a right square frustum is formed by cutting a right square pyramid with a plane parallel to its base. Suppose the origi

timama [110]

Answer:

Volume of the frustum is 76 unit³

Step-by-step explanation:

From the figure attached we have to calculate the volume of the frustum formed by cutting off a square pyramid from the top.

Volume of the frustum = $\frac{1}{3}\text{(area of the base with side 6 units)(height)}-\frac{1}{3}\text{(area of the base with side MN)}(Height)$

Since ΔAPO' and ΔAOQ are similar so

$\frac{AO}{AO'}= \frac{OQ}{O'P}$

$\frac{9}{6}= \frac{3}{O'P}$

O'P = $\frac{3\times6}{9}=2$ units

Therefore, side MN = 2× O'P = 4 units

Now we put these values in the formula

Volume of the frustum = $\frac{1}{3}(6\times6)(9)}-\frac{1}{3}(4\times4)(6)$

= $\frac{1}{3}(324)-(\frac{1}{3}\times96)$

= $\frac{324}{3}-\frac{96}{3}$

= $\frac{324-96}{3}=\frac{228}{3}$

= 76 unit³

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3 years ago

How many people out of 100,000 will die between the ages 99 and 100

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Answer: about 16 people would get to 100 and 30,000 would make it to 99

Step-by-step explanation:

the avarage life span is up to 70 years. About 1 in 6,000 reach 100.

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