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4 years ago

Describe the solution to the system of equations

Mathematics

2 answers:

horsena [70]4 years ago

7 0

the answer is A.

since the second equation is multiple of the first equation

Alexxandr [17]4 years ago

4 0

I think the Answer is 12

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(1.)Find the slope of the line that passes through the given pair of points. (If an answer is undefined, enter UNDEFINED.) (?a +

jekas [21]

Answer:

1. The slope of the line is $m=\frac{-2b+3}{2a}$ .

2. The value of a is 18.

Step-by-step explanation:

If a line passes through two points, then the slope of the line is

$m=\frac{y_2-y_1}{x_2-x_1}$

(1)

It is given that the line passes through the points (-a + 3, b - 3) and (a + 3, -b). So, the slope of the line is

$m=\frac{-b-(b-3)}{a+3-(-a+3)}$

$m=\frac{-b-b+3}{a+3+a-3)}$

$m=\frac{-2b+3}{2a}$

The slope of the line is $m=\frac{-2b+3}{2a}$ .

(2)

If the line passing through the points (a, 1) and (6, 5), then the slope of the line is

$m_1=\frac{5-1}{6-a}=\frac{4}{6-a}$

If the line passing through the points (2, 7) and (a + 2, 1), then the slope of the line is

$m_2=\frac{1-7}{a+2-2}=\frac{-6}{a}$

The slopes of two parallel lines are same.

$m_1=m_2$

$\frac{4}{6-a}=\frac{-6}{a}$

On cross multiplication we get

$4a=-6(6-a)$

$4a=-36+6a$

$4a-6a=-36$

$-2a=-36$

Divide both sides by -2.

$a=18$

Therefore the value of a is 18.

8 0

4 years ago

Halle las intersecciones con ambos ejes de la función. Halle el eje de simetría.

Harman [31]

I have 0 idea but I need help with some questions that I have

5 0

4 years ago

Solve for u. what us u (the variable)?

pashok25 [27]

Answer:

Step-by-step explanation:

First, if you get 2 by subtracting 2/3 from U, it would be equally logical that you can add 2/3 to 2 to get U.

2/3+2=2 2/3

The answer to your question should be 2 2/3.

Sorry if this doesn't help/is incorrect.

6 0

4 years ago

The quotient of 8 times a number and 5 is 9. Find the number<br> pls help me

frozen [14]

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5 0

4 years ago

Read 2 more answers

PLEASE HELP IT IS TIMED!! I WILL GIVE YOU THE BRAINLIEST

never [62]

Answer:

x= 12.3

y=8.4

Step-by-step explanation:

4 0

3 years ago