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Anestetic [448]
3 years ago
9

Which number line model represents the sum of 1 1/2 + (-1/2)??

Mathematics
1 answer:
Airida [17]3 years ago
7 0
The 4th answer is correct
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Math Help Don't Answer If Your Unsure of the answer please?<br> 2nd and 3rd pic is one question
vovangra [49]
If it si proportional
y/x=k or y=kx
if k is same throuout, then it is proportional
find their ratio
so
0/0=undefined, ignore
2/3=k
4/6=2/3=k
6/9=2/3=k
yes, proportional

y=kx
3=2k
1=2/3k
2/3 is answer



proprtional (2nd and 3rd)
graph is proprtional, first table is poroprtional
other ones are not
2nd picture is proportional, 3rd is not


(x,y), y is rise, x is run
unit rate is rise/run=15/6=5/2=2.5
unit rate is 2.5



unit rate is (1/2)/(2/5)=(1/2)(5/2)=5/4=1.25
unit rate is 1.25
7 0
3 years ago
What is the value of the 8 in the number 1.982
Lady bird [3.3K]

The answer is 80, because 8 is in the hundreds place which means 80.


3 0
3 years ago
Read 2 more answers
What is the answer to −9x−15&lt;3 ​
Lera25 [3.4K]

Answer:

x > -2

Step-by-step explanation:

Step  1  :

Pulling out like terms :

1.1     Pull out like factors :

  -9x - 18  =   -9 • (x + 2)

Equation at the end of step  1  :

Step  2  :

2.1    Divide both sides by  -9

Remember to flip the inequality sign:

Solve Basic Inequality :

2.2      Subtract  2  from both sides

           x > -2

Inequality Plot :

2.3      Inequality plot for

        -9.000 X  - 18.000  >

One solution was found :

                  x > -2

Processing ends successfully

plz mark me as brainliest :)

7 0
3 years ago
I WILL GIVE BRAINLEST PLEASE HELP
guapka [62]

Answer:

A

Step-by-step explanation:

In this question, we are concerned with selecting which of the options best represents the difference of two squares.

Let’s have an exposition below as follows;

Consider two numbers, which are perfect squares and can be expressed as a square of their square roots;

a^2 and b^2

where a and b represents the square roots of the numbers respectively.

Inserting a difference between the two, we have;

a^2 - b^2

Now by applying the difference of two squares, these numbers will become;

a^2 - b^2 = (a + b)(a-b)

So our answer out of the options will be that option that could be expressed as above.

The correct answer to this is option A

Kindly note that;

x^2 -9 can be expressed as x^2 - 3^2 and consequently, this can be written as;

(x-3)(x + 3)

7 0
3 years ago
Solve for x. 30x-20=50
MaRussiya [10]
30x - 20 = 50
use inverse operations to isolate x

30x - 20 = 50
+ 20 +20

30x = 70
(30x = 70) /30

x= 7/3 (this is the simplified term)
6 0
3 years ago
Read 2 more answers
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