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tia_tia [17]
3 years ago
12

Question 3

Mathematics
1 answer:
Nataly [62]3 years ago
5 0

Answer:

Use the Law of Sines to find PS.

Step-by-step explanation:

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X + 2y =6<br> X- y =3<br> Solution?
VikaD [51]
Since one equation has a negative y and the other has a positive y, I'm going to use those since they cancel each other out. Before that, the two y's need to be equal to each other.

x+2y=6
x-y=3

Multiply the bottom equation by two so then you have:

x+2y=6
2x-2y=6

The y's now cancel out:

x=6
2x=6

Add them together

3x=12

Divide

x=4.

To find y, plug x into either equation (*don't have to do both, but I will)

(4)+2y=6
(4)-y=3

Subtract four

2y=2
-y=-1

Divide each

2y/2 = 2/2
y=1

-y/-1 = -1/-1
y=1

The answer is:
x=4
y=1

I hope that helps!
4 0
3 years ago
Read 2 more answers
What is a better deal for check
blagie [28]

Answer: i dont get what u mean explain

Step-by-step explanation:

4 0
3 years ago
Solve the inequality<br> 2(4+2х)&gt;5x+5
Gre4nikov [31]

Answer:

3>=3

Step-by-step explanation:

2(4+2x)>=5x+5

distribute the 2: 8+4x>=5x+5

8>=x+5

3>=x

8 0
3 years ago
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What is the solution to x4 - 12x2+10&gt;0
alexira [117]

Answer:

  (-√(6-√26) < x < √(6-√26)) ∪ (x < -√(6 +√26)) ∪ (√(6 +√26) < x)

Step-by-step explanation:

Using x^2 = z, the equation can be rewritten as ...

  z^2 -12z +10 > 0

  (z -6)^2 -26 > 0

  |z -6| > √26

This resolves to two equations.

This one ...

  x^2 -6 < -√26 . . . . substitute x^2 for z

  |x| < √(6-√26) . . . . add 6, take the square root; use √a^2 = |a|

  -√(6-√26) < x < √(6-√26)

__

and this one ...

  x^2 -6 > √26

  |x| > √(6 +√26)

  x < -√(6 +√26) ∪ √(6 +√26) < x

5 0
3 years ago
Given that y l b and z l b what conclusion can be made
Helen [10]

Answer:

y I z

Step-by-step explanation:

We can see that y I b  and z I b we can conclude also that

y I z.

3 0
3 years ago
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