3 years ago

HELP MEEEEE!!!!plzzzz

Mathematics

2 answers:

VladimirAG [237]3 years ago

8 0

Hmm i think either B or C. I think C more. ;-;

Simora [160]3 years ago

7 0

Answer:

c is the answer

Step-by-step explanation:

You might be interested in

the coordinates of the endpoints of line AB and line CD are A(x1, y1), B(x2, y2), C(X3,Y3), and D(x4, y4). which condition prove

pogonyaev

Find the slope for the two lines and state that they are equal (condition for parallel lines)

Slope of line AB

[y2 - y1] / [x2 - x1]

Slope of line CD

[y4 - y3] / [x4 - x3]

Condition

[y2 - y1] / [x2 - x1] = [y4 - y3] / [x4 - x3]

3 0

4 years ago

If a = 1/x+1/y , what is the value of 1/a

lana66690 [7]

<h3>Solution</h3>

$a=\frac{1}{x}+\frac{1}{y}$

so the value of 1/a is…

$\begin{aligned}\frac{1}{a}&=\frac{1}{\frac{1}{x}+\frac{1}{y}}\\&\Rightarrow\frac{1}{\frac{y+x}{xy}}\\&\Rightarrow1\times\frac{xy}{y+x}\\&\Rightarrow\frac{xy}{x+y}\end{aligned}$