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marysya [2.9K]
3 years ago
15

What is the circumference of a circle whose radius is 13?

Mathematics
2 answers:
Inessa05 [86]3 years ago
7 0

Answer:

Circumference, C = 81.68 units

Step-by-step explanation:

Given that,

The radius of the circle, r = 13 units

We need to find the circumference of the circle. The circumference of a circle is the sum of the outer boundary. For a circle, it is given by :

C=2\ \pi r

C=2\ \pi \times 13

C = 81.68 units

So, the circumference of the circle is 81.68 units. Hence, this is the required solution.

Elza [17]3 years ago
3 0

26(pie) but the exact answer to the decimal is 81.6814. if you need the acual math ill be happy to provide it

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How many ways can 5 apple trees, 4 pear trees, and 3 cherry trees be arranged along a fence line?
Tems11 [23]

Answer:

60

Step-by-step explanation:

5 x 4 x 3=60

3 0
3 years ago
Read 2 more answers
A diamond today cost ten dollars more than twice what it cost last year.The sum of the cost (last year and this year) is $2500.
nadya68 [22]

Answer:

The cost of the diamond last year is x = $ 830

Step-by-step explanation:

Let the cost of diamond last year = x

the cost of diamond present year = y

Given that diamond today cost ten dollars more than twice what it cost last year.

⇒ y = 2 x + 10  ------ (1)

The sum of the cost (last year and this year) is  = $ 2500

⇒ x + y = $ 2500 -------- (2)

Put the value of y in equation (2) from equation (1), we get

⇒ 2 x + 10 + x = $ 2500

⇒ 3 x = 2490

⇒ x = $ 830

& y = 2500 - 830

⇒ y = $ 1670

Therefore the cost of the diamond last year is x = $ 830

6 0
3 years ago
Can anybody find the answers to any of these please
Umnica [9.8K]

(A) SAS

<u>Explanation:</u>

According to the figure,

One angle of both the triangles are equal

Two sides of both the triangles are equal

If two sides and one angle are equal, then the given triangles are congruent to each other.

7 0
4 years ago
The radius of a circle is 3 miles. What is the circle's diameter?
Gemiola [76]

Answer: 6 miles

Step-by-step explanation:

The diameter is 2x the radius

2 x 3 = 6

4 0
3 years ago
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What is a correct first step in solving the inequality –4(3 – 5x)≥ –6x + 9?
Maksim231197 [3]
Hello,
 the first step should be to distribue:
-4(3-5x)= -12+20x

Teh resolution may be:

-4(3-5x)>=-6x+9
==>-12+20x>=-6x+9
==>20x+6x>=9+12
==>26x>21
==>x>=21/26

But an other way may be used:

-4(3-5x)>=-6x+9
==>3-5x<= -6x/(-4)+9/(-4)
==>-5x-3/2 x<=-9/4 -3

==>-13/2 x <=-21/4

==>x>= -21/4 *(-2/13)
==>x>=21/(2*13)
==>x>=21/26

5 0
3 years ago
Read 2 more answers
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