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2 years ago

Solve by the matrix method , x+y/5 -1=y-x

Mathematics

1 answer:

PIT_PIT [208]2 years ago

6 0

10x - 4y = 5 (if it requires shorten)

Step-by-step explanation:

x + y/5 - 1 = y - x

<=> (5x + y - 1.5)/5 = 5(y - x)/5

<=> 5x + y - 5 = 5y - 5x

<=> 5x + 5x + y - 5y = 5

<=> 10x - 4y = 5

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Step-by-step explanation:

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2 years ago

What is the value of the expression shown below?

faltersainse [42]

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Step-by-step explanation:

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2 years ago

Jason is planning to replace carpet in the utility room of his house the length of the room is 8 feet and the width of the room

olganol [36]

Given Information:

Length of room = l = 8 feet

Width of room = w = 7 feet

Required Information:

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Answer:

Amount of carpet = 56 ft²

Step-by-step explanation:

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3 years ago

Which choice is equivalent to the product below when x > 0?

meriva

Answer:

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2 years ago

What is the line of symmetry for the parabola whose equation is y=-x^2-x+2

Delicious77 [7]

Answer:

$\huge \boxed{\sf \ \ x=-\dfrac{1}{2} \ \ }$

Step-by-step explanation:

Hello,

We need to express this parabola using this kind of expression

$y=a(x-b)^2+c$

and then, the line of symmetry will be the line x = b

Let's do it !

$\text{*** Complete the square ***} \\ \\ x^2+x=x+2\cdot \dfrac{1}{2}\cdot x=(x+\dfrac{1}{2})^2-\dfrac{1^2}{2^2}=(x+\dfrac{1}{2})^2-\dfrac{1^2}{4} \\ \\ \text{*** Apply it to our parabola } \\ \\y=-x^2-x+2=-(x^2+x)+2=-[(x+\dfrac{1}{2})^2-\dfrac{1}{4}]+2 = -(x+\dfrac{1}{2})^2+\dfrac{1+2*4}{4}= -(x+\dfrac{1}{2})^2+\dfrac{9}{4} \\ \\ \text{*** It comes ***} \\ \\ \Large \boxed{\sf \ \ y=-(x+\dfrac{1}{2})^2+\dfrac{9}{4} \ \ }$

So the line of symmetry is

$\huge \boxed{\sf \ \ x=-\dfrac{1}{2} \ \ }$

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

4 0

2 years ago

Solve by the matrix method , x+y/5 -1=y-x​

Solve by the matrix method , x+y/5 -1=y-x