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3 years ago

The formula for finding the perimeter, P, of a rectangle with length l and width w is given. P=2l+2w

Mathematics

1 answer:

Ivenika [448]3 years ago

4 0

Answer:

The formula to determine the length of rectangle with perimeter and width is L = $\frac{P - 2W}{2}$

Step-by-step explanation:

Given as :

The perimeter of rectangle = P

The length of rectangle = L

The width of rectangle = W

∵ Perimeter of rectangle given as P = 2 × Length + 2 × Width

I.e P = 2 L + 2 W

Or, 2 L = P - 2 W

∴ L = $\frac{P - 2W}{2}$

Hence The formula to determine the length of rectangle with perimeter and width is L = $\frac{P - 2W}{2}$ Answer

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Please please please help

cluponka [151]

Answer:

Step-by-step explanation:

11 times 11 equals 121 squared

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3 years ago

A rectangular prism is 7 cm long, 4 cm wide and 4 cm tall. How many 2 times 2 times 2 cm cubes can the prism be cut into? What i

Fantom [35]

Answer: The number of 2 times 2 times 2 cm cubes is 14. The total surface area of all the 2 times 2 times 2 times cm cubes is 336 cm square. The total volume of all the 2 times 2 times 2 times cm cubes is 112 cm cube.

Explanation:

It is given that the A rectangular prism is 7 cm long, 4 cm wide and 4 cm tall.

The volume of rectangular prism is,

$V_1=l\times b\times h$

$V_1=7\times 4\times 4$

$V_1=112$

Therefore, the volume of rectangular prism is 112 cm square.

The volume of cubes is,

$V_2=a^3$

$V_2=(2)^3$

$V_2=8$

The number of cubes in the rectangular prism is,

$N=\frac{V_1}{V_2} =\frac{112}{8} =14$

Therefore, the number of cubes is 14.

Total surface area of a cube is,

$A=6a^2$

$A=6(2)^2$

$A=24$

Total surface area of all cubes is,

$14\times A=14\times 24=336$

Therefore the total surface area of all cubes is 336 cm square.

Total volume of all cubes is equal t the volume of rectangular prism, i.e, 112 cm cube.

5 0

3 years ago

The volume v of a pyramid with a square base with side length s and height h is upper v equals one third s squared hv= 1 3s2h. s

zheka24 [161]

In this question,it is given that,

The volume v of a pyramid with a square base with side length s and height h is

$V = \frac{1}{3} s^2 h$

And we have to solve for s.

First we will get rid of 3 by multiplying both sides by 3, that is

$3V = s^2h
\\
s^2 = \frac{3V}{h}
\\ s = \sqrt{ \frac{3V}{h}}$

And in the next part it is given that , volume is 7700 cubic meters and height is 148 meters .

Substituting these values, we will get

$s = \sqrt{ \frac{3V}{h}}
\\
s = \sqrt{ \frac{3*7700}{148}} = 12.5 meters$

3 0

4 years ago

Write the prime factorization of each number using exponents 20

weqwewe [10]

The number 20 is a composite number so, it is possible to factorize it. In other words, 20 can be divided by 1, by itself and at least by 2 and 5. A composite number is a positive integer that has at least one positive divisor other than one or the number itself. In other words, a composite number is any integer greater than one that is not a prime number.

The prime factorization of 20 = 22•5.

The prime factors of 20 are 2 and 5.

7 0

4 years ago

What’s the right answer

ruslelena [56]

Answer:

false

Step-by-step explanation:

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3 years ago