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AleksAgata [21]

2 years ago

7

A woman walks 5 rounds along the border of a square field of area 49². Find the total distance she walks in m.

2 answers:

maks197457 [2]2 years ago

5 0

Answer:

140m

Step-by-step explanation:

perimeter of a square with area 49 is 7×4=28, 28 × 5 rounds = 140m

Luba_88 [7]2 years ago

4 0

You need to estimate the square root of 200 ft². Rewrite 200 as 2 x 100, then square root of (2*100) is:

10*sqrt(2). The sqrt(2) = 1.414, so the length of each side of the square will be 10*1.414 = 14.14 ft or about 14 ft.

You might be interested in

Is 1/8 rational or irrational?

dlinn [17]

A number is rational if it can be written as the ratio of two integers.
The ratio of two integers is a fraction, and you just did it. Your number
is the ratio of 1 to 8 . It's about as rational as you can get.

<span>Here's a fun fact that's easy to remember:
<em>ANY</em> number that you can write down on paper, completely, with digits
and a decimal point or a fraction bar if you need them, is rational.</span>

3 0

2 years ago

Read 2 more answers

V= 512^2/3* 19683^1/3*256^1/4

irina1246 [14]

Answer:

V=512^2/3* 19683^1/3*256^1/4 = 6912

Step-by-step explanation:

V= $(512^{\frac{2}{3} } ) \times (19683^{\frac{1}{3} } )\times (256^{\frac{1}{4} } )\\$

As

$2^{9} = 512\\2^{8} = 256\\19683^{\frac{1}{3} } = 27\\$

putting values in equation

V= $2^{9(^{\frac{2}{3} } )} \times 27 \times 2^{8^({\frac{1}{4}) } } \\$ let it be equation 1

As

$2^9^{\frac{2}{3} } = 2^6 according\,to\,exponential\,rule\\2^8^\frac{1}{4} = 2^2 according\,to\,exponential\,rule\\\\$

putting values in equation 1

$V= 2^6\times 27\times 2^2$

According to exponential rule $2^6 \times 2^2 = 2^8$

V= $2^8 \times 27\\$

$V=256\times 27\\V=6912$

So

V= 6912

Keywords: Algebra

Learn more about algebra at:

#learnwithBrainly

7 0

3 years ago

Danielle’s text messaging plan costs 7$ for the first 700 messages and 30 cents for each additional text message. If she owes 18

Artemon [7]

Answer:

738 messages

Step-by-step explanation:

Use the given information to set up an equation. 7 is constant and 0.3 per message, with a total of 18.40.

0.3x + 7 = 18.4

Now solve for x

0.3x = 11.4

x = 38

She sent 38 messages over the standard 700, meaning she sent a total of 738 messages in the month of October

7 0

2 years ago

A circles diameter is 10 yards what is the circles area using 3.14

faltersainse [42]

3.14 of 100 =314 that the answer

7 0

3 years ago

Read 2 more answers

A pharmacist needs 20 liters of a 2% saline solution. She has a 1% solution and a 5% solution available. How many liters of the

Flauer [41]

Answer:

15 liters of 1% solution and 5 liters of 5% solution

Step-by-step explanation:

Let x liters of 1% solution needed and y liters of 5% solution needed to make this mixture.

We can say:

20(0.02) = x(0.01) + y(0.05)

0.4 = 0.01x + 0.05y

Also, we can write:

x + y = 20

x = 20 - y

We can put this into equation 1:

0.4 = 0.01x + 0.05y

0.4 = 0.01(20 - y) + 0.05y

0.4 = 0.2 - 0.01y + 0.05y

0.2 = 0.04y

y = 5 liters

Hence, x = 20 - 5 = 15 liters

We need,

15 liters of 1% solution and 5 liters of 5% solution

4 0

3 years ago