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2 years ago

A circle has a radius of 9 cm.

Mathematics

2 answers:

stira [4]2 years ago

8 0

Radius = 9cm

So,

Area of circle = πr²

= π(9)²

= π × 81 cm²

= 81π cm²

Sauron [17]2 years ago

4 0

Answer:

254.469 cm

Step-by-step explanation:

area = πr^2

π × 81 = 254.469005 rounded to 254.469 cm

in other terms, 81π cm^2

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The high temperatures in Montana are recorded for a week. High Temperatures Sunday 46°F Monday 52°F Tuesday 51°F Wednesday 54°F

Elan Coil [88]

Answer:

Step-by-step explanation:

to get the mean you need to add up all the numbers

46+52+51+54+49+51+61=364

then divide that sum by the amount of numbers you have

364 divided by 7=52

so the mean you have is 52 degrees

5 0

2 years ago

Read 2 more answers

In this picture B and F are midpoints.

Pavlova-9 [17]

now, we know that B and F are midpoints, namely BF is a midsegment of the triangle, and therefore BF || AE, so, the base AE is twice BF.

$\bf 2BF=AE\implies 2(23)=5x-4\implies 46=5x-4\implies 50=5x \\\\\\ \cfrac{50}{5}=x\implies \boxed{10=x}$

3 0

2 years ago

Please help<br> Find the GCF of the following monomials.<br><br> -50 m4n7 and 40 m2n10

iogann1982 [59]

Answer:-10m^2 n^7

Step-by-step explanation:

8 0

2 years ago

Does anyone know the answer???

irakobra [83]

Answer:

Step-by-step explanation:

The formula of a surface area of a sphere:

$SA=4\pi R^2$

<em>R</em><em> - radius</em>

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Substitute:

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5 0

2 years ago

Ebony's bank balance 1st reached $400 on Day 4. The last day her balance was $400 was Day 8.

Tanya [424]

Ebony’s bank balance is $400 was Day 8 and this can be explained below.

<h3>How to explain the information?</h3>

Jade cannot be true because for every transaction made during withdraws, a little amount of money is collected and as such the amount will never remain $400.

Note that the scenario for the above to occur is:

On day 4, her balance = $400

On day 5, her balance = $40

On day 6, her balance = $400

On day 7, her balance = $400

On day 8, her balance = $400

Another fact is that since she deposited 400 at first, on day 8, there will be a 0 increase so the amount will still be 400.

Therefore, if the above is the case, one can deduce the fact that her balance will still be $400.

Learn more about estimation on:

brainly.com/question/107747

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6 0

1 year ago