3 years ago

The radius of a circle is 9 kilometers. What is the circle's area?

Mathematics

1 answer:

krek1111 [17]3 years ago

8 0

A=π r²=π×9²≈254.469km²

r radius is 9km

I hope it helped!!!

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Mrs. Chan buys a new car for $21,000. She pays a sales tax of $0.06 for every $1. She pays a property tax of $16.80 on every $1,

lianna [129]

Answer:

$1612.80

Step-by-step explanation:

Sales Tax would be 0.06 * 21,000 = $1260

Property Tax:

16.80 for every 1000, so how many "1000"s are there in 21,000? Simple, 21 of them.

So the property tax would be 16.80 * 21 = $352.80

Hence, total taxes (for the year) = 1260 + 352.80 = $1612.80

4 0

3 years ago

5(g+8)-7=103 what's the answer?

castortr0y [4]

Do you need the steps? g=14

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3 years ago

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Evaluate f(x)=2x-5 for x=3

Fiesta28 [93]

F(x)=2(3)-5
f(x)=6-5
f(x)=1

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3 years ago

Select the postulate of equality or inequality that is illustrated.

Airida [17]

Hello,
"<" is transitive.
aa<b<2==>a<2

4 0

3 years ago

Read 2 more answers

WHY IS THIS GETTING DELETED?? I NEED HELP

aliina [53]

If this exact question is repeatedly deleted, it's probably because of the ambiguity of the given equation. I see two likely interpretations, for instance:

$\dfrac{(5\times5)^k}{5^{-8}} = 5^3$

$\dfrac{5\times 5^k}{5^{-8}} = 5^3$

If the first one is what you intended, then

$\dfrac{(5\times5)^k}{5^{-8}} = \dfrac{(5^2)^k}{5^{-8}} = \dfrac{5^{2k}}{5^{-8}} = 5^{2k-(-8)} = 5^{2k+8} = 5^3$

and it follows that

2k + 8 = 3 ==> 2k = -5 ==> k = -5/2

If you meant the second one, then

$\dfrac{5\times 5^k}{5^{-8}} = \dfrac{5^1\times5^k}{5^{-8}} = \dfrac{5^{k+1}}{5^{-8}} = 5^{k+1-(-8)} = 5^{k+9} = 5^3$

which would give

k + 9 = 3 ==> k = -6

And for all I know, you might have meant some other alternative... When you can, you should include a picture of your problem.

3 0

3 years ago