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3 years ago

If K = (AB)/(A+B) , then B =?

Mathematics

1 answer:

ziro4ka [17]3 years ago

6 0

Answer:

K(A+B)/A

Step-by-step explanation:

K = (AB)/(A+B)

K(A+B)=AB

K(A+B)/A=B

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Find an equation of the line passing through the pair of points. Write the equation in slope-intercept form. (2,8), and (8,2)

leonid [27]

Answer:

$y=-x+10$

Step-by-step explanation:

Hi there!

Slope intercept form: $y=mx+b$ where m is the slope of the line and b is the y-intercept (the value of y when the line crosses the y-axis)

1) Find the slope (m)

$m=\frac{y_2-y_1}{x_2-x_1}$ where the two given points are $(x_1,y_1)$ and $(x_2,y_2)$

Plug in the given points (2,8),and (8,2)

$m=\frac{2-8}{8-2}\\m=\frac{-6}{6}\\m=-1$

Therefore, the slope of the line is -1. Plug this into $y=mx+b$ :

$y=-x+b$

2) Find the y-intercept (b)

$y=-x+b$

Plug in a given point and solve for b

$8=-2+b$

Add 2 to both sides

$8+2=-2+b+2\\10=b$

Therefore, the y-intercept is 10. Plug this back into $y=-x+b$ :

$y=-x+10$

I hope this helps!

3 0

3 years ago

At Saturday night's football game there were 18 less fans than half the fans at Friday night's game. There were "x" fans at Frid

TiliK225 [7]

Answer:

$\boxed{ \frac{ 1}{ 2}x - 18}$

Step-by-step explanation:

x = fans at Friday's game

½x = half the fans at Friday's game

½x – 18 = 18 fewer than half the fans at Friday's game

$\boxed{ \frac{ 1}{ 2}x - 18}$ = fans at Saturday's game.

4 0

3 years ago

Is it possible to form a triangle with the given side lengths? If not explain why not.

Brut [27]

Answer:

d. no; 0.7+1.4=2.1 is the answer...

because for forming a triangle the sum of two sides should be greater than the third side always.

while in this case it is equal so it is not possible to form a triangle...

4 0

3 years ago

What is the answer to 36 times 3\9?

irinina [24]

36 x 3/9.
3/9 = 0.33
0.33 x 36 = 12

7 0

3 years ago

Read 2 more answers

Write 6.5.x 10-4 as an ordinary number

Arada [10]

Step-by-step explanation:

0.00065

Hope it helps....

5 0

3 years ago