3 years ago

The smallest number by which 192 should be multiplied to make it a perfect cube is __

Mathematics

1 answer:

algol [13]3 years ago

3 0

Answer: 9

Step-by-step explanation:

192 * 9 = 1728

Cube root of 1728 is 12

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calculate area of wall

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now calculate area of 1 block

12 x 18 =216 square centimeters

convert cm to meters 1 cm^2 = 0.0001m^2

so 216 x 0.0001 = 0.0216 sq meter for 1 block

divide area of wall by area of block

30/0.0216 = 1388.88 so 1389 blocks are required.

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If (a/b) =(9/7)^-3 ÷(3/7)^1, then find the value of (a/b)^2

sdas [7]

Answer:

decimal = 1.20527

Step-by-step explanation:

$\frac{a}{b} = (\frac{9}{7})^{-3} \div (\frac{3}{7})^1$

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3 years ago

(2x3)^2=5^2 <br><br> Need help on this please

Leya [2.2K]

Can you check your question please

(2×3)^2

=6^2

=36

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=25

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Does 7 have a multiple? why yes, or why not? Explain using numbers, words, and pictures.

labwork [276]

Yes because it has the multiples of 7&1
Hope this helps

5 0

3 years ago

Read 2 more answers