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Anna35 [415]
3 years ago
12

Davy walks around a circular lake that has a diameter of 22 yards. Which best describes how far he walks, if he walks around the

lake five times?
Mathematics
1 answer:
kicyunya [14]3 years ago
3 0
To find the circumference of the circle you need to do dπ. 22×π is 22π. That equals approximately 69.12. Since he walks around it 5 times, 69.12×5 is 345.6 yards.
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Use the distributive property to solve the equation 2(m + 2) = 22. Describe what it means to distribute the 2 to each term insid
Mumz [18]

Answer:

m = 9  

It means that you are multiplying each of the values inside the parentheses by 2.

Step-by-step explanation:

2(m + 2) = 22

2m + 4 = 22

2m + 4 - 4 = 22 - 4

2m = 18                           -Divide both sides by 2

m = 9


3 0
3 years ago
Read 2 more answers
Se tiene un rectángulo cuya base mide el doble que su altura y su área es 12
irina [24]

Answer:

Part 1) The perimeter is  P=6\sqrt{6}\ cm

Part 2) The diagonal is d=\sqrt{30}\ cm

Step-by-step explanation:

<u><em>The question in English is</em></u>

You have a rectangle whose base is twice the height and its area is 12

square centimeters. Calculate the perimeter of the rectangle and its diagonal

step 1

Find the dimensions of rectangle

we know that

The area of rectangle is equal to

A=bh

A=12\ cm^2

so

bh=12 ----> equation A

The base is twice the height

so

b=2h ----> equation B

substitute equation B in equation A

(2h)h=12\\2h^2=12\\h^2=6\\h=\sqrt{6}\ cm

Find the value of b

b=2\sqrt{6}\ cm

step 2

Find the perimeter of rectangle

The perimeter is given by

P=2(b+h)

substitute

P=2(2\sqrt{6}+\sqrt{6})\\P=6\sqrt{6}\ cm

step 3

Find the diagonal of rectangle

Applying the Pythagorean Theorem

d^2=b^2+h^2

substitute

d^2=(2\sqrt{6})^2+(\sqrt{6})^2

d^2=30

d=\sqrt{30}\ cm

3 0
3 years ago
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3 years ago
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A baker uses 13 and one half
dusya [7]

Answer:

She sells four loaves of bread.

Step-by-step explanation:

First, convert you fractions to decimals.

13 1/2 = 13.5

2 1/4 -2.25

Next, divide 13.5 by 2.25.

13.5/2.25=6

Two thirds of 6 is 4.

Therefore, the baker sold four loaves of bread.

6 0
2 years ago
Y(x) = 2x² + 12x + 5
tester [92]

Answer:

[-6 ± √26]\2

Step-by-step explanation:

y(x) is no such thing.

Now, since this is unfactorable, apply the Quadratic Formula, x = [-b ± √(b² - 4ac)]\2a:

[-12 ± √104]\4

Divide everything by 2 to get the above answer.

I am joyous to assist you anytime.

8 0
3 years ago
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