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-Dominant- [34]
3 years ago
15

What is the perimeter and area of a rectangle with sides equal to 5 inches and 7 inches? Perimeter = _________________ inches ar

ea=____________________
please help me out asp
Mathematics
1 answer:
kolezko [41]3 years ago
5 0

Area: 35 inches

Perimeter: 24

Here's how I got my answer:

<u>Area:</u> The formula for the area of a rectangle is length * width. So if we plug that in, it would be 5 * 7, which is 35.

<u>Perimeter:</u> You can get the perimeter by adding all the sides together, which is 5 + 5 + 7 +7, which is 24.

You might be interested in
Find the dimensions of a rectangle with perimeter 68 m whose area is as large as possible. (If both values are the same number,
Lina20 [59]

Answer:

<h2>Length is 17m and Breadth is also 17m</h2>

Step-by-step explanation:

The perimeter of a rectangle is expressed as 2(L+B) where;

L is the length and B is the breadth of the triangle.

P = 2(L+B)

68 = 2(L+B)

L+B = 68/2

L+B = 34

L = 34 - B ... 1

Area of the rectangle A = LB... 2

Substituting equation 1 into 2 will give;

A = (34-B)B

A = 34B-B²

To maximize the area of the triangle, dA/dB must be equal to zero i.e

dA/dB = 0

dA/dB = 34 - 2B = 0

34-2B = 0

2B = 34

Dividing both sides of the equation by 2 we will have;

B = 34/2

B = 17

Substituting B = 17 into equation 1 to get the length L

L = 34-17

L = 17m

This shows that the rectangle with maximum area is a square since L = B = 17m

The dimension of the rectangle is Length = 17m and Breadth = 17m

8 0
3 years ago
a rectangular prism has a volume of 810 cubic meters. it has a length of 10 meters and a width of 9 meters. What is the height o
Ainat [17]

Answer:

The height of the prism is 9 meters

Step-by-step explanation:

* Lets describe the rectangular prism

- The rectangular prism has six rectangular faces

- Two of them are bases and the other four are side faces

- The rectangular prism has three dimensions length, width , height

- The volume of any prism = Area of the base × its height

∵ The base of the rectangular prism is a rectangle

∵ Area any rectangle = length × width

∴ The volume of the rectangular prism V = length × width × height

* Lets solve the problem

∵ The volume of the prism is 810 meter³

∵ Its length is 10 meter

∵ Its width is 9 meters

∵ V = length × width × height

- Substitute the values of the volume , the length and the width in

 the equation of V

∴ 810 = 10 × 9 × h

∴ 810 = 90 × h

- Divide both sides by 90

∴ 9 = h

∴ The height of the prism is 9 meters

6 0
3 years ago
A coin is tossed twice. What is the probability of the coin landing heads up both times
FromTheMoon [43]
1/2 is the probability the coin would land heads up both times.
8 0
3 years ago
What is the equation in slope intercept form for (2,5) (3,12)
kondaur [170]

Slope formula: y2-y1/x2-x1

= 12-5/3-2

= 7/1

= 7

_____

Best Regards,

Wolfyy :)

7 0
3 years ago
HELP!!! ANSWER QUICKLY PLS!!! <br><br> (dont worry about the purple dot)
OverLord2011 [107]
The answer is b cause none of x is the same number
8 0
3 years ago
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