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4 years ago

Solve the system of linear equations 2x -3y =1 -4x+6y=-4

Mathematics

2 answers:

ella [17]4 years ago

6 0

Answer: the system of linear equations has no solutions.

Step-by-step explanation:

The given system of linear equations is expressed as

2x -3y =1 - - - - - - - - - - - - -1

-4x+6y=-4 - - - - - - - - - - - - - 2

We would eliminate x by multiplying equation 1 by 2 and equation 2 by 1. It becomes

4x - 6y = 2

- 4x + 6y = - 4

Adding both equations, it becomes

4x - 4x - 6x + 6x = 2 - 4

0 = -2

Therefore, there is no solution to the system of linear equations

kherson [118]4 years ago

6 0

Answer:

No solution

Step-by-step explanation:

Given equations are:

$2x-3y=1$ ---------------------(1)

$-4x+6y=-4$ -------------------(2)

Multiplying equation 1 by 2:

$4x-6y=2$ ---------------------(3)

Adding equations (2) and (3):

0=-2

This is an impossible equality.That means that there are no solutions to the given system of linear equations.

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Sindrei [870]

D. 4.81 x 10^13
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48,100,000,000,000

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ehidna [41]

Since 30 times 5= 150, he worked 150 hours for the rest of the week.

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3 years ago

Need help on this one

malfutka [58]

Answer:

Step-by-step explanation:

To simplify this expression, we will simply work with the numerator, then the denominator, and then the fraction as a whole, following PEMDAS.

Numerator: 12 - 6 + 5 * (-3)^2

= 12 - 6 + 5 * (9)

= 12 - 6 + 45

= 6 + 45

= 51

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So our simplified fraction is as follows:

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Which can be reduced to the whole number, 3.

Cheers.

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3 years ago

Find the average rate of change of f(x)=-x^2+2x+2 from x=2 to x=6. Simplify your answer as much as possible.

Eduardwww [97]

Answer:

- 6

Step-by-step explanation:

The average rate of change of f(x) in the closed interval [ a, b ] is

$\frac{f(b)-f(a)}{b-a}$

Here [ a, b ] = [ 2, 6 ] , then

f(b) = f(6) = - 6² + 2(6) + 2 = - 36 + 12 + 2 = - 22

f(a) = f(2) = - 2² + 2(2) + 2 = - 4 + 4 + 2 = 2 , then

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3 years ago

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tensa zangetsu [6.8K]

We use the FOIL method here. First, Outer, Inner, and Last.

(5x)(x) = 5x^2

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(2)(x) = 2x

(2)(-7) = -14

5x^2 - 35x + 2x - 14

Now combine like terms.

5x^2 - 33x - 14.

This is the right answer because it is now in the form of ax^2 + bx + c

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3 years ago

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