3 years ago

What value from the set 10,11,12,13 that makes the equation 2(x-5)=12 true

Mathematics

1 answer:

Bas_tet [7]3 years ago

5 0

Answer:

Step-by-step explanation:

first (x-5) you would substitute x for 11 then subtract 5. next you would multiple by 2 and your answer would be 12

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Find the surface area of this cube 7m 7m 7m. Be sure to include the correct unit in your answer.

7nadin3 [17]

Answer:

294 $m^2$

Step-by-step explanation:

The area of one face of the cube would be 7 x 7 = 49 $m^2$

Since there are 6 faces on a cube, the total surface area would therefore be 49 x 6 = $294m^2$

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2 years ago

The dimensions of a right rectangular prism are shown below. 1 in. 1a in. 2 in. in. How many cubes with side lengths of inch are

Dafna1 [17]

First we neeed to find the volume of the rectangular prism

$V=\text{ l}\times w\times h$ $V=1\times1\frac{1}{6}\times2\frac{1}{6}$ $=1\times\frac{7}{6}\times\frac{13}{6}$ $=\frac{91}{36}in^3$

Volume of cube with side lengths 1/6 = 1/6 x 1/6 x 1/6 = 1/216

The number of cubes needed to fill the prism without gaps or overlaps =

$=\frac{91}{36}\text{ divide by }\frac{1}{216}$ $=\frac{91}{36}\times\frac{216}{1}$ $=\frac{19656}{36}$ $=546$

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1 year ago

Can someone explain to me how to remove all the perfect squares ? I’m kind of confused and my teacher is unavailable to help and

mixer [17]

Answer:

b^2√30b

Step-by-step explanation:

√30b^5 - Original

Break down the radical with its factors (factor tree)

√3*2*5*b*b*b*b*b

See what perfect squares you can take out (Can take out four b terms) You cant take out any perfect squares involving 30 since there are no perfect squares

b^2√3*2*5*b

b^2√30b

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2 years ago

Hurry Please!

blagie [28]

I believe the answer should be 4 and 2

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3 years ago

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Nostrana [21]

The customer will pay $24.00 for a dress normally priced at $30.00

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3 years ago