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Lubov Fominskaja [6]
3 years ago
15

PLZ HELP!!! Estimate the diameter of a circle with a circumference of 86 cm.

Mathematics
1 answer:
Pepsi [2]3 years ago
5 0
Pi=3.14, So 86 x 3.14= [ 270.04]
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Can someone please help me asap ill mark brainlist + extra points!!!! questions 4 and 5
xz_007 [3.2K]

Step-by-step explanation:

1. radius=13in

diameter= 2r =2(13)=26in

area=πr²= 22/7*(13)²

531.14in²

circumference= 2πr=2*22/7*13

81.71in

2.radius=32ft

diameter= 2r =2(32)=64ft

area=πr²= 22/7*(32)²

3218.28ft²

circumference= 2πr=2*22/7*32

201.14ft

3 0
3 years ago
PLEASE HELP ASAP
Lerok [7]

Answer:

A) 2(9x - 2)

Step-by-step explanation:

The greatest common factor of 18x and -4 is 2.

B is wrong because 18 is not the greatest common factor of both, since 4 cannot be divided by 18 and result in a whole number.

C is wrong because 18x cannot be divided by 4 to produce a whole number.

D is wrong because it restates the problem in a different way, therefore not factoring it completely. 1 is a common factor of both, but not the greatest.

4 0
2 years ago
You go to the mall to make some purchases. You buy 3 dresses which cost $59.99 each and a pair of shoes that cost $75. What is t
mina [271]
Combine costs
59.99(3) + 75 = 179.97 + 75
179.97 + 75 = $254.99 (total cost)
Now add tax: 8% = 0.08
254.99 * 0.08 = 20.3992
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Solution: bill would be around $275
6 0
2 years ago
What is 4•(5+3)=4•8=
Artist 52 [7]

Answer:

32

Step-by-step explanation:

4 0
3 years ago
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Factorise 16 x²+ 4 y² + 9 z²​
Dominik [7]

Answer:

The expression is not factorable with rational numbers.

Step-by-step explanation:

4 0
2 years ago
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