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3 years ago

Can you work out the volume of a cube with a length of 10cm, width of 5cm and a height of 8cm?

Mathematics

1 answer:

Katen [24]3 years ago

6 0

Answer:

400cm^3

Step-by-step explanation:

Length= 10cm

Width= 5cm

Height= 8cm

Volume of cube= Length*Width*Height

= 10*5*8

= 400cm^3

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What is y=4x^2-9x+1 in vertex form

Anna11 [10]

Answer:

$y = 4 \left(x - \dfrac{9}{8} \right)^2 - \dfrac{65}{16}$

Step-by-step explanation:

$y = 4x^2 - 9x + 1$

You need to complete the square on the right side.

$y = (4x^2 - 9x) + 1$

$y = 4(x^2 - \dfrac{9}{4}x) + 1$

$y = 4 \left( x^2 - \dfrac{9}{4}x + \left( \dfrac{9}{8} \right)^2 \right) + 1 - 4\left( \dfrac{9}{8} \right)^2$

$y = 4 \left(x - \dfrac{9}{8} \right)^2 + 1 - 4 \left( \dfrac{81}{64} \right)$

$y = 4 \left(x - \dfrac{9}{8} \right)^2 + 1 - \dfrac{81}{16}$

$y = 4 \left(x - \dfrac{9}{8} \right)^2 + \dfrac{16}{16} - \dfrac{81}{16}$

$y = 4 \left(x - \dfrac{9}{8} \right)^2 - \dfrac{65}{16}$

3 0

2 years ago

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alexgriva [62]

Answer:The answer is 25 blocks

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2 years ago

Find the unit rate with the second given unit in the denominator 67.50 for 9 pizza

Kamila [148]

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2 years ago

If the smaller of two numbers is one-half of the larger number and the sum of the two numbers is 81 , find the numbers.

zavuch27 [327]

Let smaller number be x/2 and the larger number x.

x/2 + x = 81
x/2 + x = 3x/2
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1 year ago

Two positive integers have a sum of 23 and a product of 126. Find the two numbers.

meriva

Answer:

SUBTRACT

Step-by-step explanation:

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2 years ago