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Ipatiy [6.2K]
3 years ago
8

C equals 2 pie r can you solve for r

Mathematics
1 answer:
gizmo_the_mogwai [7]3 years ago
5 0
C=2 \pi r \ \ \to \ \ r= \cfrac{C}{2 \pi }
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What is -2.6c - 2.8c equal??
Zina [86]

Answer:

-5.4c

Step-by-step explanation:

We're combining two "like" terms here.

It may make the problem easier to visualize if we write one of these terms over the other, as follows:

-2.6c

- 2.8c

----------

Adding, we get:

-2.6c

- 2.8c

----------

- 5.4c (answer)

3 0
3 years ago
Find out the Range coefficient of the range
Alex777 [14]

Answer:

0.4494

Step-by-step explanation:

Given :

marks number of students

20-29 8

30-39 12

40-49 20

50-59 7

60-69 3​

The range Coefficient is obtained thus :

Range Coefficient = (Xm - Xl) / (Xm + Xl)

Where ;

Xm = Mid value of highest class = (60+69)/2 = 64.5

Xl = Mid value of lowest class = (20+29)/2 = 24.5

Range Coefficient = (64.5 - 24.5) / (64.5 + 24.5)

Range Coefficient = 40 / 89 = 0.4494

7 0
2 years ago
Solve the equation x2<br> 18x + 21 = -3x to the nearest tenth.
Bumek [7]

Answer:

1x=-29

2x=-1

Step-by-step explanation:

i hope its useful.

7 0
2 years ago
If y=80,when x=32 find x when y=100
Bess [88]
Y        X
80     32
100    x'

80x' = 100*32
80x' = 3200
x' = 3200/80
x' = 320/8
x' = 40
5 0
3 years ago
Vinny has decided to order high tops in black and white at a 5:8 ratio. He believes he will need a total of 169 pairs. How many
Citrus2011 [14]

Answer:

  65 pairs

Step-by-step explanation:

Black makes up 5/(5+8) = 5/13 of the total order, so ...

  (5/13)(169 pairs) = 65 pairs

Vinny will order 65 pairs of black high tops.

3 0
3 years ago
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