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pogonyaev
3 years ago
15

What is the circumference of the base

Mathematics
2 answers:
katrin2010 [14]3 years ago
3 0
43.96

Explanation:

C=2pi(r)
C=2pi(7)
C=14pi
14 x 3.14 = 43.96
podryga [215]3 years ago
3 0

The answer is 43.96.

Explanation:

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George bought 30 packets of football cards they were 14 cards and each packet how many cards did George buy
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He has 420 cards. if you have 30 packs and 14 in each just 30*14
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Relationship between the values of 44000
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The 4 is in the ten thousands place, and the thousands place

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3 years ago
Solve the system 2x+4y=16 5x +3y=19 then find the value of y/x
AURORKA [14]

Answer:

I would change 2x+4y=24 into x=12–2y

To do that, divide both sides by 2 and then subtract 2y on each side.

After that, substitute for x. 3x+2y=19 would become 3(12–2y)+2y=19.

Then solve.

3(12–2y)+2y=19

36–6y+2y=19

-4y+36=19

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y=4.25

Then, substitute y in either equation.

Either this:

3x+2y=19

3x+2(4.25)=19

3x+8.5=19

3x=10.5

x=3.5

Or:

2x+4y=24

2x+4(4.25)=24

2x+17=24

2x=7

x=3.5

Or you could solve it in the equation you created in the beginning:

x=12–2y

x=12–2(4.25)

x=12–8.5

x=3.5

The coordinates where the lines intercept are (3.5, 4.25).

Sorry for the long answer!

4 0
3 years ago
Given that Triangle ABC such that<br>a=8cm, b=7cm and c=9cm<br>tem and c= 9cm find Cos B​
charle [14.2K]

Answer:

We use cosine rule also called cosine law which states

c^2=a^2+b^2-2abcosC

given

a=8cm, b=7cm, c=9cm cos C?

9^2=8^+7^2-2*8*7 cos C

expand

81=64+49-112 cos C

like terms together

81-113=-112 cos C

-32=-112cos C

multiply both sides by -1

32=112cos C

divide both sides by 112

32/112=cos C

cosC=0.2857

find cos inverse of 0.2857

angle C= 73.40

4 0
3 years ago
What is the simplest form for 4/3?
shutvik [7]

4/3 in simplest form is 4/3 but in decimal form it would be 1.33333

hope this helped, please mark brainilest :)

3 0
3 years ago
Read 2 more answers
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