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dimulka [17.4K]
3 years ago
6

Find the area of a circle with a radius of 8.

Mathematics
1 answer:
miss Akunina [59]3 years ago
7 0

Answer:

64π²

Step-by-step explanation:

Formula is πr². Just put 8 into r.

Can I have Brainliest?

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Convert decimal to fraction
scoray [572]
Converting decimals into fractions is simple, all you have to do is think about the number, for example .25, if you look at it you realize it's 1/4 of 1, so it's naturally 1/4, you do this with all of them
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Identify a pattern in the given list of numbers. Then use this pattern to find the next number.
Rom4ik [11]

Answer:

The given sequence is geometric sequence

In the given pattern we have next number is a_5=\frac{1}{4}

Step-by-step explanation:

Given numbers are 64,-16,4,-1

To identify the pattern of the given numbers :

Let a_1=64, a_2=-16 ,a_3=4  and a_4=-1

To find the next number that is a_5

common ratio r=\frac{a_2}{a_1}

=\frac{-16}{64}

r=-\frac{1}{4}

r=\frac{a_3}{a_2}

=\frac{4}{-16}

r=-\frac{1}{4}

Therefore the common ration is r=-\frac{1}{4}

Therefore the given sequence is geometric sequence

The nth term of the geometric sequence is a_n=a_1r^{n-1}

Now find the 5th term so put n=5 , a_1=64andr=\frac{-1}{4} we have

a_5=64(\frac{-1}{4})^{5-1}

=64(\frac{-1}{4})^{4}

=64(\frac{1}{4})^{4}

=64(\frac{1}{4}\times \frac{1}{4}\times \frac{1}{4}\times \frac{1}{4})

=\frac{1}{4}

Therefore a_5=\frac{1}{4}

8 0
3 years ago
What does a supplementary angle look like
Keith_Richards [23]

Answer:

It has no special appearance.

Step-by-step explanation:

Any angle of measure 180° or less is supplementary to some angle. A supplementary angle is one that is the difference between 180° and the angle you have. That is, two supplementary angles total 180°.

__

Supplementary angles are readily identifiable in a number of geometries. Adjacent angles of a parallelogram are supplementary; linear angles are supplementary. Same-side interior angles where a transversal crosses parallel lines are supplementary.

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Find solution to initial value problem: y'' +4y' +7y = 0; y(0) = 1, y'(0) = -2
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Try this option, modify design according to local requirements.

4 0
3 years ago
6 multiplication problems that ar involved in the solving of 325×89​
gogolik [260]

325*89.1

Let's decompose this into:

325 = 300 + 25

89.1 = 80 + 9 + 0.1

Then we have the multiplication:

(300 + 25)*(80 + 9 + 0.1)

Let's distribute the multiplication:

300*80 + 300*9 + 300*0.1 + 25*80 + 25*9 + 25*0.1

So now we have 6 multiplications that are a lot easier to solve than the initial one that we had.

Then the list of six multiplications involved in solving this problem are:

300*80 = 24,400

300*9 = 2,700

300*0.1 = 30

25*80 = 2,000

25*9 = 225

25*0.1 = 2.5

Now we add all of those and get:

325*89.1 = 24,400 + 2,700 + 30 + 2,000 +  225 + 2.5 = 28,957.5

4 0
3 years ago
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