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Svetradugi [14.3K]
3 years ago
6

Solve the system of equations by graphing2x+y=8x+3y=9​

Mathematics
1 answer:
natima [27]3 years ago
3 0

9514 1404 393

Answer:

  (x, y) = (3, 2)

Step-by-step explanation:

The attached graph shows the solution.

  (x, y) = (3, 2)

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Please answer both for 15 points
Debora [2.8K]

Answer:

Hey look i am sorry for not doing them both i only know the second it is b 3000

Step-by-step explanation:

8 0
3 years ago
Simplify (2x^4 + 7x^3 - 3x^2 + 7) - (4x^4 - 3x^3 - 5x - 20)
nikdorinn [45]

Answer:

  -2x^4 +10x^3 -3x^2 +5x +27

Step-by-step explanation:

a) Using the distributive property, we can eliminate parentheses:

  2x^4 + 7x^3 - 3x^2 + 7 - 4x^4 + 3x^3 + 5x + 20

And using the distributive property again, we can factor pairs of like terms:

  = x^4(2 -4) +x^3(7 +3) -3x^2 +5x +(7 +20)

b)

  = -2x^4 +10x^3 -3x^2 +5x +27

4 0
4 years ago
Read 2 more answers
Can anyone please help me on this question I’m kinda stuck.
inysia [295]

Answer:

They are the same

Step-by-step explanation:

The degree is basically all of the exponents added up. So:

A) 2+4 = 6

B) 2+3+1 = 6

(since x to the power of 1 is x)

So, they are the same

3 0
3 years ago
Add the following fractions.<br><br> 3/8 + 5/12 =
IRINA_888 [86]

for 3/8 you can times by 12 to make 36/96

for 5/12 you can times by 8 to make 40/96

now that they have the same denominators (bottoms), you can add them to make

36/96 + 40/96 =76/96

simplified

= 38/48

=19/24

7 0
4 years ago
Read 2 more answers
Teddy has two number cards.
melamori03 [73]

Answer:

7 and 14

Step-by-step explanation:

Given the LCM of two numbers to be 126

If one of the numbers is 18

The other number will be 126/18 = 7

The other possible value can be gotten by multiplying the lowest prime number by 7 i.e 2×7= 14

The two possible numbers are 7 and 14

7 0
3 years ago
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