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3 years ago

5

How do you write an equation for a a line perpendicular to a line with only having the equation and not graphing?

2 answers:

slamgirl [31]3 years ago

8 0

Perpendicular lines gradients times to get -1 so you just use a line with any y intercept but the gradient must times with the gradient you already have to get minus one.

Arturiano [62]3 years ago

7 0

Put each formula in y=mx+b form, then find the inverse of m.
Ex:
1. x+y=2
y=x-2
the inverse of 1 is -1 so the perpendicular line would be y=-x-2

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Martin is interested in the effects of different kinds of instruction on videogame performance. Martin asks 30 college freshmen

777dan777 [17]

Answer:

Between - groups variance

Step-by-step explanation:

From the question we see that the college freshmen are assigned to one of the three given groups. This means that they are exposed to different experimental conditions and thus it means that the variation differs as a result of different experimental conditions between the groups.

Thus, these differences reflect between - group variance.

5 0

2 years ago

3 2/3 - 2 3/4= ______________

NISA [10]

Answer:

7 5/12

Step-by-step explanation:

3+2=6

2/3 + 3/4 = 8/12 + 9/12 = 17/12 = 1 5/12

1 + 6= 7 5/12

7 0

3 years ago

Read 2 more answers

A mirror is 24 inches high and 28 inches wide. The center of the mirror will hang 514 feet from the floor on a wall that is 8 fe

Vanyuwa [196]

The distance from the top of the mirror to the ceiling once the mirror is hung on the wall is 21 inches

The dimension of the mirror is given as:

$Height = 24\ in$

$Width = 28\ in$

From the center of the mirror to the floor of the wall, the distance is:

$Distance =5\frac14\ ft$

So, the distance to the top of the mirror will be:

$Top = 5\frac 14\ ft + \frac 12 \times Height$

Substitute 24 for height

$Top = 5\frac 14\ ft+ \frac 12 \times 24\ in$

$Top = 5\frac 14\ ft+ 12 \ in$

Convert feet to inches

$Top = 5\frac 14\times 12\ in+ 12 \ in$

$Top = 63\ in+ 12 \ in$

$Top = 75 \ in$

The distance from the top of the mirror to the ceiling is the difference between the height of the wall and 75 inches.

So, we have:

$Distance = 8\ ft - 75\ in$

Convert feet to inches

$Distance = 8\times 12\ in - 75\ in$

$Distance = 96\ in - 75\ in$

$Distance = 21\ in$

Hence, the distance is 21 inches

Read more about lengths at:

brainly.com/question/10545161

3 0

2 years ago

Y varies directly as x . when x=3 , then y=12 . find y when x=20.

Phoenix [80]

Answer:

Congress. would equal 80 due to x being worth 1/4 of y's total.

3 0

2 years ago

Your dad is putting a new circular swimming pool in the backyard that has the radius of 8 ft. If he wants to put bricks AROUND t

stira [4]

Answer:

2r*3.14= c

Step-by-step explanation:

2*8=16

16* 3.14=50.24

He will need 51 feet of brick

3 0

3 years ago

Read 2 more answers