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2 years ago

Π (pi) is an unending decimal. Find the Circumference of the circle below using exact π (pi).

Mathematics

2 answers:

dalvyx [7]2 years ago

7 0

Step-by-step explanation:

Given radius, r = 5,

Circumference of Circle, C

$= 2\pi \: r \\ = 2\pi(5) \\ = 10\pi \: units$

Svetllana [295]2 years ago

3 0

Answer:

$10\pi$

Step-by-step explanation:

As the hint below says:

$C = 2\pi r$

We also know that

r = 5

So thus:

$C = 2 \pi \cdot 5 = 10\pi$

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If a = x+21, b = 8, c = x + 4, and d = 10, then the value of x is Answer . (Round your answer to one decimal)

Zinaida [17]

Answer:

Step-by-step explanation:

5 0

2 years ago

I need you to help me round decimels

KonstantinChe [14]

question number 1 is 0.6 and 1.4 number 2 is 0.2 and 2.5 number 3 is 20.0
and 26.1 number 4 is 6.54 and cannot see number 5 is 29.15 and cannot see number 6 is 32.10 and cannot see number 7 is 20.051 and cannot see number 8 is 36.582 and cannot see number 9 is 16.570 and cannot see thank you

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2 years ago

Consider the initial value function y given by

Nuetrik [128]

Answer:

y(s) = $\frac{5s-53}{s^{2} - 10s + 26}$

we will compare the denominator to the form $(s-a)^{2} +\beta ^{2}$

$s^{2} -10s+26 = (s-a)^{2} +\beta ^{2} = s^{2} -2as +a^{2} +\beta ^{2}$

comparing coefficients of terms in s

$s^{2} :$ 1

s: -2a = -10

a = -2/-10

a = 1/5

constant: $a^{2}+\beta ^{2} = 26$

$(\frac{1}{5} )^{2} + \beta ^{2} = 26\\\\\beta^{2} = 26 - \frac{1}{10} \\\\\beta =\sqrt{26 - \frac{1}{10}} =5.09$

hence the first answers are:

a = 1/5 = 0.2

β = 5.09

Given that y(s) = $A(s-a)+B((s-a)^{2} +\beta ^{2} )$

we insert the values of a and β

$\\5s-53$ = $A(s-0.2)+B((s-0.2)^{2} + 5.09^{2} )$

to obtain the constants A and B we equate the numerators and we substituting s = 0.2 on both side to eliminate A

5(0.2)-53 = A(0.2-0.2) + B((0.2-0.2)²+5.09²)

-52 = B(26)

B = -52/26 = -2

to get A lets substitute s=0.4

5(0.4)-53 = A(0.4-0.2) + (-2)((0.4 - 0.2)²+5.09²)

-51 = 0.2A - 52.08

0.2A = -51 + 52.08

A = -1.08/0.2 = 5.4

the constants are

a = 0.2

β = 5.09

A = 5.4

B = -2

Step-by-step explanation:

since the denominator has a complex root we compare with the standard form $s^{2} -10s+26 = (s-a)^{2} +\beta ^{2} = s^{2} -2as +a^{2} +\beta ^{2}$
Expand and compare coefficients to obtain the values of a and β as shown above
substitute the values gotten into the function
Now assume any value for 's' but the assumption should be guided to eliminate an unknown, just as we've use s=0.2 above to eliminate A
after obtaining the first constant, substitute the value back into the function and obtain the second just as we've shown clearly above

Thanks...

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2 years ago

Trimble Graphic Design receives $2,250 from a client billed in a previous month for services provided. Which of the following ge

krok68 [10]

Answer:

Dr Cash/Bank $2,250

Cr Account Receivable $2,250

Step-by-step explanation:

At the time the transaction was carried out, that is the previous month, the accounting entries was a debit to account receivable (client account) and a credit to sales account. which is as shown below:

Dr Account Receivable $2,250

Cr Sales $2,250

Being sales on credit to a client.

The client account will have an outstanding debit balance of $2,250 until payment is made. once payment is made, the following entries will be made to ensure no outstanding balance in the client account.

Dr Cash/Bank $2,250

Cr Account Receivable $2,250.

7 0

2 years ago

Do we use Pythagorean theorem to find missing sides or missing angles in a right triangle

Marina86 [1]

To find missing lengths of sides
hope this helped have a nice day

8 0

2 years ago