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Zinaida [17]
3 years ago
15

I DO NOT HAVE A LOT OF TIME SO PLS BE FAST

Mathematics
2 answers:
anastassius [24]3 years ago
8 0

Answer:

π = C/2r

Step-by-step explanation:

C=2πr

C/2r = π

inna [77]3 years ago
8 0

C = 2πr

π = C/2r

pi is equal to the circumference divided by two times the radius of a circle

You might be interested in
Find c.
Vinvika [58]
<h3>Answer:   0.5</h3>

========================================================

Explanation:

The ultimate goal is to find the value for lowercase c, or find the length of side c. So we'll use the portion sin(C)/c as part of the law of sines.

We don't know the value of lowercase 'a', so we'll ignore the sin(A)/a portion.

This leaves sin(B)/b

We see that one side is 2 cm long, so this means b = 2. The angle opposite this is 105 degrees, so B = 105.

The angle opposite side c is 15 degrees, so C = 15.

The lowercase letters represent side lengths, while the uppercase letters are angles.

--------------------------

We have enough to apply the law of sines to solve for side c.

sin(B)/b = sin(C)/c

sin(105)/2 = sin(15)/c

c*sin(105) = 2*sin(15) ............. cross multiply

c = 2*sin(15)/sin(105) .............. dividing both sides by sin(105)

c = 0.53589838486224

c = 0.5

Side c is roughly 0.5 cm long.

Make sure your calculator is in degree mode.

6 0
3 years ago
Read 2 more answers
2. Is 4x – 3 = 19 true, false, or open? <br> A)true<br> B)false<br> C)open
ElenaW [278]

Answer: B. False

Step-by-step explanation: Because you do

4x - 3 = 19

+3 +3 =4x = 22

You divide 4x divide by 4 and you get x

Then you divide 22 by 4 and get 5.5

So the answer is X = 5.5

6 0
3 years ago
The owner of a deli recorded the number of customers who ordered each of four sandwiches available. If the deli has 50 customers
alexandr1967 [171]
160+100+180+60=500
180/500=0.36=36%
50x36%=18
That's your answer lovely~
3 0
3 years ago
Read 2 more answers
I guess u have to find the area
Nesterboy [21]
18
Because 6•3= 18
Hope this helped
7 0
4 years ago
Read 2 more answers
Ali performed the following dimensional analysis to convert a rate of 72 mph.
Nataly [62]

Answer:

B. feet/second

Step-by-step explanation:

6 0
3 years ago
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