Answer:
should be 12 if the x and y are squared. If you meant 2x and 2y than 12 is incorrect.
Step-by-step explanation: 144=r^2.
<h3>5x - y = 27 and 2x + y = 8 are the system of equations with a solution of (5,-2)
</h3>
<em><u>Solution:</u></em>
Given that,
create a system of equations with a solution of (5,-2)
<em><u>The equation for a line in slope intercept form:</u></em>
y = mx + b
Where, m is the slope and b is the y intercept
For (x, y) = (5, -2)
-2 = 5m + b
<em><u>When m = 5</u></em>
-2 = 5(5) + b
-2 = 25 + b
b = -2 - 25
b = -27
<em><u>When m = -2</u></em>
-2 = 5(-2) + b
-2 = -10 + b
b = 8
<em><u>Thus equations are:</u></em>
y = 5x - 27
y = -2x + 8
<em><u>Rearranging to standard form,</u></em>
5x - y = 27 --- eqn 1
2x + y = 8 ---- eqn 2
Thus the system of equations are found
<h3><u>Verify:</u></h3>
Solve eqn 1 and eqn 2
Add both eqn 1 and eqn 2
7x = 35
<h3>x = 5</h3>
Substitute x = 5 in eqn 2
2(5) + y = 8
y = 8 - 10
<h3>y = -2</h3>
Thus solution is (5, -2) and the found system of equations are correct
Answer:
so okay so sorry for the loss but you have a good feeling about your relationship with your boyfriend or your partner in a way that I don't like when you're a good guy who has to do that and he is just chilling your day to the day going to a relationship or a job and if I was born I am going out with the guy you have a girlfriend but people have been talking with me and say I have no homo but people have a problem that is so important and he doesn't know that you can be the only guy that I can jump in heaven at this place for you and you are not in the middle of the world of the world of the world of the world of the world of the world of the world of the world of the world of the world of
Step-by-step explanation:
the company has a lot more to say about the people who were in it than you did before and the fact is the first step to off your credit is to make your business 4AM more attractive and the more to your day than I would be in
0.4L = 400ml
Each student effectively adds 10ml of water so 22 students are adding 10ml of water each. Therefore, 22 x 10 = 220ml total in all the containers added by all 22 students
Water left = 400 - 220 = 180
The answer is B.
Answer:
secθ = - 2
Step-by-step explanation:
Using the identity
sec²θ = 1 + tan²θ
= 1 + (
)² = 1 + 3 = 4 ( take the square root of both sides )
secθ = ± 
= ± 2
Since secθ < 0 in the third quadrant , then
secθ = - 2
