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3 years ago

What is the volume of this figure?

Mathematics

1 answer:

OLga [1]3 years ago

6 0

Well, the volume of a rectangle is length * width * height, so you would multiply 4 * 2 * 3 = 24 cubic units. Hope this helps!

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Determine the lengths of the sides of the rectangle using the given area. Give answers both exactly and

Degger [83]

Answer:

Part a) Exactly values

The width of the rectangle is $\frac{\sqrt{70}}{2}\ cm$

The length of the rectangle is $2\sqrt{70}\ cm$

Part b) Approximately values

The width of the rectangle is $4.2\ cm$

The length of the rectangle is $16.7\ cm$

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

The area of rectangle is equal to

$A=LW$

we have

$L=4x\ cm\\W=x\ cm$

substitute the values in the formula

$A=4x(x)$

$A=4x^2$

$A=70\ cm^2$

$70=4x^2$

Solve for x

Divide by 4 both sides

$\frac{70}{4}=x^2$

square root both sides

$x=(+/-)\frac{\sqrt{70}}{2}$

The solution is the positive value

$x=\frac{\sqrt{70}}{2}$

therefore

Exactly values

$L=4\sqrt{70}}{2}=2\sqrt{70}\ cm\\\\W=\frac{\sqrt{70}}{2}\ cm$

Approximately values

$L=4\sqrt{70}}{2}=16.7\ cm\\\\W=\frac{\sqrt{70}}{2}=4.2\ cm$

6 0

3 years ago

PLEASEEE HELPPP Solve for x:

m_a_m_a [10]

Second option, just do Pemdas backwards.

5 0

3 years ago

Choose the best description for the real number 34 over 3 .

ycow [4]

Answer: the first one is irrational because it is a repeating fraction.

the third is square root of 7 is less than 14/5

the fourth is negative 5 over 6, negative 5, negative 31 over 6, negative square root 26

Step-by-step explanation: Hope this helps !

7 0

2 years ago

Help me out because I don’t know how to do this and I would really appreciate it.

pshichka [43]

Answer:

it is an interior alternate angle and x= 27

Step-by-step explanation:

5 0

3 years ago

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What are the factors of 21?

inysia [295]

Factors of 21 1,3,7,21

7 0

3 years ago

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