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IrinaK [193]
3 years ago
11

Find the value of K for which the slope of the line through (-2,k) and (5,3k-4) is 8.#14

Mathematics
1 answer:
denis-greek [22]3 years ago
6 0
I dont have a calculator, but set it up as k/-2 - (3k-4)/5 = 8/1
You might be interested in
Instructions
Naya [18.7K]

Answer:

yes

Step-by-step explanation:

youre trying to find when -1/4x + 3/2 = -x+ 3

so if you set it up like that and then solve for x you get 2

then, you know that 2 is your x value so just plug in x into one of the equations to get the y value

(i used -x+3 bc its easier)

-2+3=y

y= 1

so your solution is (2,1)

also heres the graph

5 0
3 years ago
What is x^2+x-20=0. <br> please help
zepelin [54]
X² + x - 20 = 0

x² = x * x
x = the sum of the factors of -20
-20 ⇒  1 x 20
            2 x 10
          - 4 x 5 ⇒ only these factors can arrive to a sum of 1

(x - 4)(x + 5) = x(x+5) - 4(x+5) = x² + 5x - 4x - 20 = x² + x - 20

x - 4 = 0
x = 4

x + 5 = 0
x = -5
7 0
4 years ago
Help me with all three problems! This is due tommorow
nalin [4]
11) x-intercept: 12
y-intercept: 8

12) x-intercept: -18
y-intercept:-16

13) x-intercept: 6
y-intercept:10

Sorry I can't graph it for you but here are the equations in the slope-intercept form

11)y=-2/3x+8
12)y=-8/9x-16
13)y=-5/3x+10
3 0
3 years ago
Solve the system of equations.
77julia77 [94]
The answer should be The B
8 0
2 years ago
Read 2 more answers
Angles 2 and 7 are called what
Phantasy [73]

Answer:

Alternate Exterior Angles

Step-by-step explanation:

Alternate exterior angles are two angles on the opposite outer sides of two parallel lines cut by a transversal.  

The two angles given, 2 and 7, are alternate exterior angles.

Hope it helps! :)

3 0
3 years ago
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