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vaieri [72.5K]
3 years ago
14

Solve the system by graphing!

Mathematics
2 answers:
zhannawk [14.2K]3 years ago
6 0
Are you looking for where they cross ? if so its (-1,2)
natulia [17]3 years ago
6 0
I’m pretty sure this is it

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A sheet of construction paper is 9 inches long and 11 inches wide. How many 1- inch squares of paper can cut out one sheet of pa
Serggg [28]

Answer:

99

Step-by-step explanation: 9*11=99

8 0
3 years ago
Read 2 more answers
I need help on this question can someone please help me?
Svetllana [295]

I really hate these algebra problems pretending to be geometry.  

Anyway angles B and D  are congruent in a parallelogram.  Geometry part done.

4n - 2 = 2n + 32

2n = 34

n = 17

Answer: 17, which is the 3rd choice

3 0
3 years ago
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Consider all numbers consisting of four different digits all between 1 and 9 . How many of these are odd
Slav-nsk [51]

Answer:

1680

Step-by-step explanation:

Considering repeatition is not allowed.

We can  use permutation to reach to the required answer.

Consider four digits to be placed in four boxes. Now for the number to be odd, unit digit must be odd. Therefore, unit digit can only be filled by 1, 3, 5,7, or 9. That is 5 ways. Now, other three boxes can be filled with 8, 7 and 6 ways respectively.

Therefore, Total numbers = 5×8×7×6 = 1680

7 0
3 years ago
One number is 1 more than 2 times another. Their product is 10. Find the numbers.
Taya2010 [7]
Whenever a problem says "one number" and "another number" we can substitute x and y. for this we have x=2y+1 and xy=1. since we know the value of x (2y+1) we can substitute it for the other equation to get (2y+1)y=10. simplify to get 2y^2+y=10. from here you can do a few methods to solve this, but the simplest in my opinion is by factoring. 

In order to factor it must be equal to 0, so we have 2y^2+y-10=0. We factor this and get y=5 (we also get y=-4 but it is an extraneous root). now we can plug that into either equation and find that x=2.

this means our two numbers are 5 and 2
3 0
3 years ago
67 POINTS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
denis-greek [22]

Answer:

I think the answer is 5

Hopefully it works :)

Step-by-step explanation:

3 0
2 years ago
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