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arsen [322]
3 years ago
11

Find the diameter and circumference of a circle with the radius of 13.1 km.

Mathematics
1 answer:
Alexandra [31]3 years ago
4 0
R = 13.1
so
<span>diameter  = 13.1 x 2 = 26.2 km
</span>circumference = 2 pi r = 26.2 pi km
or
circumference = 26.2 x 3.14 = 82.27 km
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Gwar [14]
For number 9 it's x+8= 14 and 7x=21
For number 10 the answer is that Beth is correct because the only number that could be replaced for x would be 2. There is no number besides 2 that you could put in the equation x+3=5 to get the answer 5.
3 0
3 years ago
1 and 2 are complementary angles. 1 and 3 are vertical angles. If
Marizza181 [45]

If angle 1 and angle 2 are <u>complementary, </u>then they add up to 90 degrees. We are given that angle 2 equals 52 degrees.

So we subtract and get our answer:

38

That's NOT the final answer.

The next step is:

Angle 1 and angle 3 are vertical angles.

Vertical angles are congruent.

So if angle 1 is 38, then angle 3 is also 38.

Now, supplementary angles add up to 180 degrees.

So that's the answer:

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142 is the supplement of angle 3.

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8 0
3 years ago
On a cell phone mapping app, 5cm represents 150 feet. Which equation represents this relationship?
AnnZ [28]

Answer:

b cuz 150/5=3 :)

Step-by-step explanation:

cuz 150/5=3 :)

6 0
4 years ago
Ramon’s teacher wrote the following table on the board She then asked the class to write a rule for the nth term of the geometri
snow_lady [41]

Answer:

do you still need help with this?

Step-by-step explanation:

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8 0
3 years ago
In the parallelogram above, BE= 7x-12, CE=10x-5, and DE= 3x+4. What is the length of BD​
kompoz [17]

ABCD is a parallelogram ⇒ BE = DE

So: 7x - 12 = 3x + 4

⇔ 7x - 3x = 4 + 12

⇔ 4x = 16

⇔ x = 16/4 = 4

⇒ BE = 7(4) - 12 = 28 - 12 = 16

⇒ DE = 3(4) + 4 = 12 + 4 = 16

⇒ BD = BE + DE = 16 + 16 = 32

Answer: BD = 32

Ok done. Thank to me :>

3 0
2 years ago
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