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Lady bird [3.3K]
3 years ago
12

What is the equation for a line that passes through the points (5,-3) and (-10,12)?

Mathematics
2 answers:
Gala2k [10]3 years ago
7 0

Answer:

y = -x + 2

Step-by-step explanation:

First, find the slope.

12 - (-3) / -10 - 5

15/-5

-1

The slope is -1.

Our equation will be y = -1x + b

Insert on the x,y corrdinates given.

12=-1(-10) + b

12=10 + b

2 = b

Now that we know b,

the equation is

y = -x + 2

LekaFEV [45]3 years ago
5 0

Answer: y = -x + 2

Step-by-step explanation:

When x=0, y = 2

When y=0, x = 2

Hope this helps!

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2x +4 (3 - 2x) = 3(2x + 2)/6 + 4<br> from my math book
liberstina [14]

Answer:

x = 1

Step-by-step explanation:

2x +4 (3 - 2x) = 3(2x + 2)/6 + 4

2x+12-8x = (6x+6)/6 +4

-6x + 12 = x+1+4

12-5 = 7x

7x = 7

x=1

Hope this helps!

4 0
2 years ago
Read 2 more answers
In the diagram below PQR are point on the circle with centre o and diameter 14cm &lt;PRQ=35° Find the length of the minor arc PQ
Gekata [30.6K]

Answer:

Step-by-step explanation:

I'll draw a quick sketch. It's hard to "see" this kinda of problem w/o a drawing , so start there.   just draw as much as you can from what the problem tells you.

diameter = 14 cm

radius = 7 cm

pi = 3.142

PRQ = 35 °

to find Y use law of sines

sin(70) / Y = sin(55) / 7

sin(70) / sin(55) / 7 = Y  ( I'll use my calculator for all the non standard angles )

sin(70) * 7 / sin(55) = Y   ( and invert and multiply the fraction in the denom )

8.03007 = Y

x = 70 °

if you have questions, and  you should, just put them in the comments , I'll see them later :)

5 0
2 years ago
Write the relation as a set of ordered pairs
Marina CMI [18]

I don't know what the relation in your problem is, but I'll just explain this using my own example.

Let's use the following relation as the example (pretend it's a table of values):

x | y

0 |  1

2 |  4

4  |  7

6  | 10

To write the relation as ordered pairs, you need the x and y values from the table. An ordered pair is written like this: (x,y).

Based off of this explanation, the ordered pairs from this example would be:

(0,1) (2,4) (4,7) (6,10)

7 0
2 years ago
Find the coordinates of point A(-3,-4) after a rotation 180° counterclockwise about the origin. Then the point is reflected over
nexus9112 [7]
I believe it's (3,4) 
3 0
2 years ago
Can someone help me?
ad-work [718]

Answer:

  • registration fee: $50
  • monthly fee: $80

Step-by-step explanation:

Let r and m represent the registration fee and the monthly fee, respectively. We are told that the charges are ...

  370 = r + 4m

  530 = r + 6m

This is your system of equations.

__

Subtract the first equation from the second to start the solution.

  (530) -(370) = (r +6m) -(r +4m)

  160 = 2m . . . . . . simplify

  80 = m . . . . . . . . divide by 2

Using this value in the first equation, we find ...

  370 = r + 4(80)

  50 = r . . . . . . . . . . . . subtract 320

The registration fee is $50; the monthly fee is $80.

3 0
2 years ago
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