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3 years ago

What is the difference of the rational expressions below?

Mathematics

1 answer:

Rom4ik [11]3 years ago

3 0

Answer:

** +2x

Step-by-step explanation:

All the other ones can be it any thing will have difference but how can you do it?

* -sign mutipulcation

2x+* can be different.

O c, OA is N X+2 and more is not a equation. * - can be times really any number.

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The equation that passes through (3,6) and is perpendicular to 3x - 4y = - 2

Fynjy0 [20]

Answer:

Step-by-step explanation:

We want the equation of the line that passes through (3, 6) and is perpendicular to:

$3x-4y=-2$

First, convert the second equation into slope-intercept form:

$-4y=-3x-2\Rightarrow \displaystyle y=\frac{3}{4}x+\frac{1}{2}$

So, we can see that the slope of the line is 3/4.

The slopes of perpendicular lines are negative reciprocals of each other.

Therefore, the slope of the new line is -4/3.

It passes through the point (3, 6).

We can use the point-slope form:

$y-y_1=m(x-x_1)$

Substitute:

$\displaystyle y-(6)=-\frac{4}{3}(x-3)$

Distribute:

$\displaystyle y-6=-\frac{4}{3}x+4$

Therefore:

$\displaystyle y=-\frac{4}{3}x+10$

The answer is C.

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3 years ago

After 4new students joined a class the class had 32students which equation can be used to find n the number of students in the c

Pani-rosa [81]

Answer:

n+4=32 is the answer

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3 years ago

Pre-image point N(6,-3) was dilated to point N'(2, -1). What was the scale factor used?

Aleksandr [31]

Answer:

scale factor = $\frac{1}{3}$

Step-by-step explanation:

Consider the ratio of the x and y- coordinates, image to original, that is

scale factor = $\frac{2}{6}$ = $\frac{-1}{-3}$ = $\frac{1}{3}$

8 0

3 years ago

Multiply Conjugates Using the Product of Conjugates Pattern

siniylev [52]

Answer:

The product is the difference of squares is $(9c-2d)(9c+2d)=81{{c}^2}-4{{d}^2}$

Step-by-step explanation:

Explanation

The given expression is (9c-2d)(9c+2d).

We have to multiply the given expression.

Square the first term 9c. Square the last term 2d.

$\begin{aligned}&(9 c-2 d)(9 c+2 d)=(9 c)^{2}-(2 d)^{2} \\&(9 c-2 d)(9 c+2 d)=81 c^{2}-4 d^{2}\end{aligned}$

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2 years ago

Help me with number two

Natali5045456 [20]

5 (92 - 18) =
5 (74) = 370

4 0

3 years ago