4 years ago

Lines a and b are perpendicular. The equation of line a is y=13x+3. What is the equation of line b?

Mathematics

1 answer:

Harlamova29_29 [7]4 years ago

3 0

Any equation that includes y=1/13x.

m must be 1/13

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Ann [662]

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3 years ago

The midpoint of segment AB is (-7, 10) and endpoint A is located at (3, -1). Find the other endpoint B. Show all work.

dusya [7]

Answer:

$B(-17,21)$

Step-by-step explanation:

The midpoint of two points is the average of the x coordinates and the average of the y coordinates.

Given

A(3, -1)

and we let the other end point B be B(x,y)

and midpoint is (-7,10)

So, the average of 3 and x is -7, and

the average of -1 and y is 10

We can solve for x first:

$\frac{3+x}{2}=-7\\3+x=2*-7\\3+x=-14\\x=-14-3\\x=-17$

and now solving for y:

$\frac{-1+y}{2}=10\\-1+y=2*10\\-1+y=20\\y=20+1\\y=21$

So, the other point B is:

$B(-17,21)$

6 0

3 years ago

Oakland Middle school has 128 6th graders, 121 7th graders and 135 8th graders. If there are 3 teachers per 32 students, how man

zepelin [54]

Answer:

36 Teachers in Total

Step-by-step explanation:

I would use Ratio.

Students: 128 + 121 + 135 = 384 total students

Teachers: Students

3 : 32

36 : 384

384 ÷ 32 = 12

12 x 3 = 36

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3 years ago

Compare -5.5 and -26/5

Sveta_85 [38]

-26/5 is the larger number. It is -5.1.

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3 years ago

Rearranging x+y-xr solve for y

kondor19780726 [428]

The value of y = x(r -1)

Given expression is : <span>x+y-xr

Now, on rearranging the terms of the expression we get,

x -xr + y
Now, we put it equal to zero to find the value:

</span>x -xr + y = 0
⇒ y = xr -x (The signs changes on moving from left-hand side of the equation to the right hand side)
⇒ y = x(r -1)

3 0

4 years ago