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olga_2 [115]
3 years ago
6

I need help on 11 and 12.

Mathematics
1 answer:
kvv77 [185]3 years ago
8 0
I need help with this please respond rn
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Complete the equation of the line through (4,-8)(4,−8)left parenthesis, 4, comma, minu
In-s [12.5K]
Equation of a line is in the form y = mx+c, where m is the gradient and c is the y-intercept.

First step is to find the gradient.

m = (y2-y1)/(x2-x1)
= ( 5- -8)/(8-4) = 13/4

We have y = (13/4)x + c

Now we replace one of the coordinates to find c. Let’s replace (4,-8)

We have: -8 = (13/4)*4 + c

-8=13+c
c=-8-13= -21

Therefore, equation of line is:

y = (13/4)x - 21
3 0
2 years ago
Perpendicular to y=4x-7; contains the point (4,3)
san4es73 [151]
Okay, so a general rule for finding perpendicular lines in the form of y = mx + b is y = (-1/m) + b.
First, let's ignore b (-7) because we're going to find that later.
A perpendicular line to y = 4x + b is y = -1/4x + b.
Alright, so now let's plug in the values. They are in the form of (x,y), so let's plug them in accordingly.

3 = -1/4(4) + b
3 = -1 + b
b = 4
y = -1/4x + 4
So a line perpendicular to y = 4x - 7 is y = -1/4x + 4.
5 0
3 years ago
1. If x is the supplementary angle of 155°,
ValentinkaMS [17]

Answer:

0.466 degree is the. answer

6 0
3 years ago
**HELP!**
mr_godi [17]
If two figures or lengths are similar, then the ratios of the corresponding lengths are equal.
Thus, 8/32 =5/x
          8x = 160
            x = 20 feet
Therefore, the length of the flag pole was 20 feet long
3 0
2 years ago
What type of number is 0? Rational, Irrational, Whole number, Integer
gladu [14]
It is a whole number and integer.
4 0
3 years ago
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