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Troyanec [42]
3 years ago
5

What is the result of adding 2x+7y=4 and -2x-8y=-2

Mathematics
1 answer:
Anika [276]3 years ago
6 0

Answer:

x = 2 + 3.5y

Step-by-step explanation:

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What is the length of the radius of a circle with diameter AB: A(5, 4) and B(-1, -4)? * A. 10 B. square root 10 C. 5 D. square r
Gwar [14]

Answer:

I think its um B(-1,-4).

5 0
3 years ago
The system of equations y=4x y-4=4 (x-1) has.
Alekssandra [29.7K]

Answer:

infinitely many solutions.

Step-by-step explanation:

y=4x

y-4=4 (x-1)

Lets substitute the first equation into the second equation.

4x -4 = 4(x-1)

Distribute

4x-4 = 4x-4

Subtract 4x from each side

4x-4x-4 =4x-4x-4

-4=-4

This is always true.  X can be anything.  We have infinite solutions

6 0
3 years ago
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Write a rule for the linear function shown in the graph.
Bezzdna [24]

Answer:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

Point Form:

( 1 ,   − 2 )

Equation Form:

x = 1 ,   y = − 2

Step-by-step explanation:

Graph.

y = 3 x − 1

y = x + 1

y = − x − 1

y = x + 1

8 0
3 years ago
HALP!!! GIVE CORRECT ANSWER AND YOU WILL BE MArKED BRAINLIEST!!!
Deffense [45]

Step-by-step explanation:

the solution area :

-2x - 2y > 4

so,

x + y < -2

4 0
3 years ago
Matt has answered 20 over 25 of the questions on a test. what percentage of the test question has Matt answered
lyudmila [28]
So,

Matt answered 20 out of 25 questions.
\frac{20}{25}

We need to get the denominator to be 100.  We can do that by multiplying the fraction by a form of 1.
\frac{20}{25} *  \frac{4}{4} =  \frac{80}{100}

From here, it should be easy to see that Matt has answered 80% of his test.
6 0
3 years ago
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