Solve for X y = 0.25x + -11 Please explain and provide evidence

Mathematics

2 answers:

DedPeter [7]3 years ago

8 0

Answer:

Unfortunately it can't be solved.

Step-by-step explanation:

x is the all real number. which means it will have many solutions.

Orlov [11]3 years ago

8 0

Answer:

x = 4(y + 11).

Step-by-step explanation:

y = 0.25x + -11 Add 11 to both sides:

y + 11 = 0.25x + - 11 + 11

y + 11 = 0.25x Now multiply both sides by 40 to give x on its own:

4(y + 11) = 0.25x * 4

x = 4(y + 11).

Let's check if the answer is right by substituting 2 for x in:

y = 0.25x - 11

= 0.5 - 11 = -10.5.

Now substitute -10.5 for y and 2 for x in x = 4(y + 11):

2 = 4(-10.5 + 11) = 4 * 0.5 = 2.

So our answer is correct.

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Which of these is a complex number?

Setler79 [48]

The answer is D.

Explanation: The square root of a negative number is imaginary which is another name for a complex number

8 0

2 years ago

Write the equation of a line that passes through the points (−3, 7) and (3, 3)

Dennis_Churaev [7]

Step-by-step explanation:

You can write an equation of a line conveniently by point-slope form. It's in the form of $y -a = m(x -b)$ where $(b,a)$ is the coordinates of a point that's on the line and $m$ is the slope of the line.

Now choose a point (It doesn't really matter which one) and plug that in the equation. I'll choose $(-3,7)$ where $a = 7$ and $b = -3$

$y -a = m(x -b) \\ y -7 = m(x -(-3)) \\ y -7 = m(x +3)$

The next thing we have to do now is finding the slope, $m$ , where it's equal to $\frac{y_{2} -y_{1}}{x_{2} -x_{1}}\\$ . I'll make $(-3,7)$ point 1 and $(3,3)$ point 2.

$m = \frac{3 - 7}{3 -(-3)} \\ m = \frac{3 - 7}{3 +3} \\ m = \frac{-4}{6} \\ m = -\frac{2}{3}$

Now let's plug that to our equation.

$y -7 = m(x +3) \\ y -7 = -\frac{2}{3}(x +3)$

Now we have the equation but out of all the choices it seemed that all of them are in slope-intercept form all you have to do now is make our equation rewrite it in slope-intercept form.

$y -7 = -\frac{2}{3}(x +3)\\ y -7 = -\frac{2}{3}x -\frac{2}{3}(3) \\ y - 7 = -\frac{2}{3}x -2\\ y = -\frac{2}{3}x +5$