A positive and negative charge will attract each

-4(9n + 9) = -12(4n - 6).

WITCHER [35]

Answer:

n = 9

Step-by-step explanation:

Step 1: Write equation

-4(9n + 9) = -12(4n - 6)

Step 2: Solve for n

Distribute: -36n - 36 = -48n + 72

Add 48n to both sides: 12n - 36 = 72

Add 36 to both sides: 12n = 108

Divide both sides by 12: n = 9

Step 3: Check

Plug in n to verify if it's a solution.

-4(9(9) + 9) = -12(4(9) - 6)

-4(81 + 9) = -12(36 - 6)

-4(90) = -12(30)

-360 = -360

7 0

4 years ago

Write the equation of a line that is perpendicular to y=2/7x +9 and that passes through the point (4,-6).

Allisa [31]

Answer:

$y=-\frac{7}{2}x+8$

Step-by-step explanation:

Given the equation

$y\:=\:\frac{2}{7}x+9$

comparing the equation with the slope-intercept form

$y =mx+b$

Here,

m is the slope

y is the intercept

so the slope of the line is 2/7

As we know that the slope of the perpendicular line is basically the negative reciprocal of the slope of the line, so

the slope of the perpendicular line will be: -7/2

Therefore, the point-slope form of the equation of the perpendicular line that goes through (4,-6) is:

$y-y_1=m\left(x-x_1\right)$

$y-\left(-6\right)=\frac{-7}{2}\left(x-4\right)$

$y+6=\frac{-7}{2}\left(x-4\right)$

$y+6-6=\frac{-7}{2}\left(x-4\right)-6$

$y=-\frac{7}{2}x+8$

3 0

3 years ago

The number p is 20 more than the number q. Using algebra, write the relationship between p and q.

makvit [3.9K]

We can express the question by algebraic expression
p=20+q

3 0

4 years ago

Avery is going to invest $270 and leave it in an account for 20 years. Assuming the interest is compounded continuously, what in

Cloud [144]

Answer:

50

Step-by-step explanation:

hhh

5 0

3 years ago

Read 3 more answers

Any math geniuses? Please respond to this question. Thank you!

valina [46]

Answer:

yes what is the question

Step-by-step explanation:

Any math geniuses? Please respond to this question. Thank you!

5 0

3 years ago

Read 2 more answers