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Ivan
3 years ago
11

Is 1.21221222122221 rational or irrational ?

Mathematics
2 answers:
trasher [3.6K]3 years ago
8 0
It is irrational, as it's not a number that can be divided into a whole number by another whole number.
cluponka [151]3 years ago
7 0
It is irrational because an irrational number has endless non-repeating digits to the right of the decimal point.
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Which equation is represented by the table of values below
algol13

Answer:

Y= –4X+3

Step-by-step explanation:

Aight, check this out. the X and Ys are gonna form a linear equation.

Y=aX+b

3=a(0)+b===> b=3, so there you got for b

–1=a(1)+3===> a= –4

and the final touch

Y= –4X+3

6 0
3 years ago
Can you help me with numbers 20-22 please a lot of points
arsen [322]
We could find the slope with this formula
m = (y₂ - y₁)/(x₂ - x₁)
with (x₁,y₁) and (x₂,y₂) are the points that is located on the line.


NUMBER 20
Given:
(x₁,y₁) = (-2,3)
(x₂,y₂) = (7,-4)

Solution:
Input the points to the formula
m = (y₂ - y₁) / (x₂ - x₁)
m = (-4 - 3) / (7 - (-2))
m = -7 / (7+2)
m = -7/9

The slope of the line is -7/9


NUMBER 21
Given:
(x₁,y₁) = (-6,-1)
(x₂,y₂) = (4,1)

Solution:
Input the points to the formula
m = (y₂ - y₁) / (x₂ - x₁)
m = (1-(-1)) / (4 -(-6))
m = (1+1) / (4+6)
m = 2/10
m = 1/5

The slope of the line is 1/5


NUMBER 22
Given:
(x₁,y₁) = (-9,3)
(x₂,y₂) = (2,1)

Solution:
Input the points to the formula
m = (y₂ - y₁) / (x₂ - x₁)
m = (1 - 3) / (2 - (-9))
m = -2 / (2 + 9)
m = -2/11

The slope of the line is -2/11
6 0
3 years ago
Which expression represents "7 times the sum of 4 and y?" (1 point) 7(4 + y) 7 ⋅ 4 + y 4 + 7 ⋅ y 4(7 + y)
sukhopar [10]

Answer:

7(4 + y)

Step-by-step explanation:

7 0
3 years ago
Help help I need to find the height of a cylinder helppp<br> The volume is 1215<br> The radius is9
Naddika [18.5K]

Answer:

15

Step-by-step explanation:

Its pretty simple, u need to learn this.

The solution is volume divided by area of circle.

Area of circle is π times radius square.

8 0
3 years ago
PLEASE HELP ASAP!! CORRECT ANSWER ONLY PLEASE!!<br><br> Simplify.<br><br> 3√-50
3241004551 [841]

3√(-50) = 3√(-1*50)=3i√(25*2) = 3*5i√2=15i√2

7 0
3 years ago
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