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Pavlova-9 [17]
3 years ago
12

What is the y-value in the solution to this system of linear equations? 4x + 5y = -12 -2x + 3y = -16 them -4 -2 2​

Mathematics
1 answer:
VikaD [51]3 years ago
5 0

Answer: I think it's y= -4

Step-by-step explanation:

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Determine the values of k and p so that the solution is "All Reals" when solving for y:
Angelina_Jolie [31]

Answer:

The value of k is  \pm 9 and The value of p is - 23  

Step-by-step explanation:

Given equation as :

81 y - 17  = k² y + 6 + p

The equation has real solution ,

Now for real solution the equation have no solution

∵ The equation has no solution the ,

The coefficient of y must be equal

I.e 81 = k²

Or, k = \sqrt{81}

∴   k = \pm 9

Again , If the coefficient of y is same then the equation is written as

6 + p = - 17

or, p = - 17 - 6

or, p = - 23

Hence The value of k is  \pm 9 and The value of p is - 23   Answer

6 0
3 years ago
6-2x=5x-9x+10 solve for x
andrew-mc [135]
X=2

So you solve for x by simplifying bath sides of the equation, then all you do is isolate the variables
7 0
4 years ago
What's the area of these?
kvasek [131]
Left side: 63, 72, 16 right side: 36, 4, 35
6 0
3 years ago
I need help on this plz
balandron [24]

Answer:

(2) angle1 = 139, angle2 = 41, angle4 = 41, angle5 = 139, angle6 = 41, angle7 = 139, angle8 = 41

(3) angle1 = 150, angle2 = 30, angle4 = 30, angle5 = 150, angle6 = 30, angle7 = 150, angle8 = 30

Step-by-step explanation:

All angle are either equal to each other or supplementary.  I use corresponding angles and vertical angles to prove each of the above.

For number 3, angle 3 and angle 8 are supplementary, so they add up to 180:

8x +70 + (4x - 10) = 180

12x + 60 = 180

12x = 120

x = 10

So if x = 10, then 8x + 70 = 8(10) + 70 = 150

That means all angles are either 150 or 30 for number 3.

3 0
3 years ago
Help please!!
DanielleElmas [232]

Answer:

Yes

Step-by-step explanation:

Did the math on my calculator on my phone

6 0
3 years ago
Read 2 more answers
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