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Fittoniya [83]
3 years ago
15

Find the EXACT area AND circumference of the following circle.

Mathematics
1 answer:
VARVARA [1.3K]3 years ago
3 0

area = Pi*r^2

= Pi*10^2

=100Pi

=314.1592654

circumference = Pi*Diameter

= Pi*20

=20Pi

=62.83185307

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What is ​ BC ​ ?<br><br><br> Enter your answer in the box.
tangare [24]
Lines AB and AC are equal so you set up an equation like so...
4x + 1 = 2x + 23
Subtract 1 from both sides.
4x = 2x + 22
Subtract 2x from both sides.
2x = 22
Divide.
x = 11
Now you need to plug in 11 into 3x - 8.
3(11) - 8
= 33 - 8
= 25
So BC is 25.
I hope this helps love! :) 
5 0
3 years ago
<img src="https://tex.z-dn.net/?f=x%20%3D%20%20%5Cfrac%7Bb%20%2B%20%20-%20%20%5Csqrt%7B%7Bb%7D%5E%7B2%7D%20-%204ac%20%7D%20%7D%7
Phantasy [73]

If it is asking if that equation is the quadratic formula, then the answer is false. The reason why is that the first 'b' should be negative

The quadratic formula is

x = \frac{-b \pm \sqrt{b^2-4ac}}{2a}

3 0
3 years ago
When a square number is written as a product of prime numbers what can you say about the factors?
Nana76 [90]

Answer:

The square of a prime number is prime

5 0
3 years ago
Hi please help me as soon as possible:
sammy [17]

Answer:

Percentage = 14.2%

Step-by-step explanation:

<u>Given the following data;</u>

Cost of plane ticket = £588

Airport tax = $130

£1 = $1.34

To find the percentage of the total cost spent on airport tax;

First of all, we would convert the ticket cost in pounds (£) to dollars ($).

Cost of plane ticket = £588 to $ = 588 * 1.34 = $787. 92

Total cost = Cost of plane ticket + Airport tax

Total cost = 787. 92 + 130

Total cost = $917.92

Percentage \; cost = \frac {130}{917.92} * 100

Percentage  = 0.1416 * 100

<em>Percentage cost = 14.16 to 1 d.p = 14.2%</em>

<em>Therefore, the percentage of the total cost spent on airport tax by Rimo is 14.2 percent. </em>

6 0
3 years ago
If you jog at a rate of 9 kilometers per hour, how long will it take you to
Schach [20]

Answer:

1.66667

Step-by-step explanation:

9------1

15-----?

We divide 9 by 9 to get 1 so we divide 15 by 9 to get ?

15 / 9 = 1.66667

4 0
2 years ago
Read 2 more answers
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