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tester [92]
3 years ago
10

The area of a rectangle is 40 aware feet what could be the prememiter of the rectangle

Mathematics
1 answer:
alex41 [277]3 years ago
8 0

Answer:

One possibility is 28 feet.


Step-by-step explanation:

Lets look at some  factors of 40

40 = 4 * 10   So 4 and 10 could be the width and length of the rectangle.

Then its perimeter = 2*length + 2*width

= 2*10 + 2*4

= 28 feet

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does somebody knows how to do this one?
vlada-n [284]

Answer:

Step-by-step explanation:

To find the area subtract the area of the semicircle from the area of the rectangle.

Although the line isn’t there, if you imagine there is one, then you will see that you form a rectangle which is the same line as the semicircle’s diameter.

The area of rectangle is:

⇒ A = lw

⇒ A = (14)(8)

⇒ A = 112cm^{2}

The area of the semicircle;

⇒ A = \frac{1}{2}\pi r^{2}

⇒ A = \frac{1}{2}\pi (7)^{2}

*Note here that the radius is half the diameter, so it is 7cm, not 14cm

⇒ A = 76.97cm^{2}

Finally subtract the two areas;

⇒ A = 112 - 76.97

⇒ A = 35.03cm^{2}

6 0
2 years ago
What is the geometric mean of 40 and 15?
mart [117]
You would do 40/x=x/15, therefore you get x^2=600. to find x you find the square root of each side. Rounded to the nearest tenth, you get 24.5. If you put it in simplest radical form you should get 10 times the square root of 6
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3 years ago
Can you help me please
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3 years ago
Which pair of equations are perpendicular lines? A. 5x + 2y = 9 and y = –5/2x+27/2 B. x – 3y = 11 and y = –3x + 23 C. 4x + 2y =
svlad2 [7]
There is a really easy way to do this problem and that is to use a graphing website

after punching in the functions:

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Oliga [24]

Answer:

just do the question and you will get the answer.

7 0
2 years ago
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