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Sergeu [11.5K]
3 years ago
13

Which number is an irrational number?

Mathematics
1 answer:
EastWind [94]3 years ago
5 0
The answer is d. it isn’t an exact number
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Why are mathematicians like airlines?
ipn [44]
They both use planes.
8 0
3 years ago
The slope intercept form of a linear equation is y=mx+b,where x and y are coordianates of an ordered pair, m is the slope of the
atroni [7]
Yes you are correct !
7 0
3 years ago
Please help me I don’t know how to solve it and will mark brainiliest
Sindrei [870]

Answer: One plain roll is 4 dollars and one shiny roll is 6 dollars.

Step-by-step explanation:

lets start by saying

rolls of plain wrapping paper = x

rolls of shiny wrapping paper = y

Kathryn sold 4 plain rolls and 3 shiny rolls for 34 dollars.

4x+3y=34

Eugene sold 4 plain rolls and 2 shiny rolls for 28 dollars

4x+2y=28

Both equations will look like this.

4x+3y=34

-1(4x+2y)=(28)-1

we can multiply the second equation by -1 to get y alone. (doesn't matter which equation). Once you do that, the positive 4x and the negative 4x cancel out, 3y-2y=1y and 34-28=6. you are left with

1y=6 so one shiny roll is 6 dollars.

now use that price to find the cost of the plain roll.

lets use Kathryn's equation

4x + 3(6)=34

4x + 18= 34

      -18  -18

4x=16. Divide by 4 to find cost of one plain roll.

16÷4=4. One plain roll costs 4 dollars.

Lets check. Using Kathryn's equation,

4(4) + 3(6)=34

16+18=34

34=34. We are right.

3 0
3 years ago
Does anyone know this ?
MariettaO [177]
180 - 64 = 116
116 / 2 = 58 :)

Check: 58 + 58 + 64 = 180
4 0
3 years ago
Find the surface area of the composite solid.
Illusion [34]

The ends of the rectangle = 10*10*2 = 200

The long sides and bottom of the rectangle = 12*10*3 = 360

Vertical end of the triangle = 5*10 = 50

The sides of the triangle = 12*5*1/2*2 = 60

Triangle slope = 13*10 = 130

Total = 200 + 360 + 50 + 60 + 130 =

800 in sq

7 0
3 years ago
Read 2 more answers
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