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diamong [38]
3 years ago
11

How do you determine if a pair of lines are parallel? For example, the lines -3x+8y=24 and 3x-8y=7?

Mathematics
1 answer:
FromTheMoon [43]3 years ago
7 0

first you put this equation into y=mx+b form then you look at the slope of the equation. if both of the slopes are same then its parallel.


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Decimals from 7.0 to 8.4, with an interval of 0.2 between each pair of decimals
andrey2020 [161]
7.0, 7.2, 7.4, 7.6, 7.8, 8.0, 8.2, 8.4
4 0
3 years ago
What is the change in temperature from 15°F to -8°F?
rewona [7]

Answer:

23 degrees

Step-by-step explanation:

15 - (-8)

15 + 8

23

Hope this helps :)

4 0
3 years ago
Read 2 more answers
A line passes through (2, –1) and (8, 4). a. Write an equation for the line in point-slope form. b. Rewrite the equation in stan
pentagon [3]
The point-slope form of a line is:

y-y1=m(x-x1),  where m=slope and (x1,y1) is any point on the line

First we need to find the slope, which is (y2-y1)/(x2-x1)

m=(4--1)/(8-2)

m=5/6 and we can use either point, I'll use (8,4)

y-4=(5/6)(x-8)

That is your equation in point-slope form.

Now the standard equation of a line is ax+by=c

y-4=(5/6)(x-8)  we can perform the indicated multiplication on the right side

y-4=(5x-40)/6  multiply both sides by 6

6y-24=5x-40  add 24 to both sides

6y=5x-16  subtract 5x from both sides

-5x+6y=-16  and by convention, the standard equation of a line should be expressed with a positive coefficient for x, so multiply both sides by -1

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8 0
3 years ago
If the area of a circle is 16pi what is the circumference of the circle, circle b, if its radius is 1/2 that of the circle a
Natasha2012 [34]
First find the radius of circle A. You know that the equation is r^2*pi, so just divide both by pi.
r^2*pi=16pi
/pi          /pi
r^2=16
R is 4. That means that circle B is 2, since its radius is half that of circle A.
C=pi2r
C=pi2(2)
C=pi4
C=4pi
The answer is 4pi.
5 0
3 years ago
Evaluate the numerical expression. 5 + (46 + 7) * 2
bulgar [2K]
5 + (46 + 7) x 2

5 + (53) x 2

5 + 106

111 is answer


PEMDAS (parenthesis, exponent, multiply & divide, add & subtract)


hope this helps
3 0
3 years ago
Read 2 more answers
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