Answer:
(x, y) = (-4, -15)
Step-by-step explanation:
Perhaps you want the solution to ...
y = 3/4x -12
y = -4x -31
Equating the two expressions for y gives ...
3/4x -12 = -4x -31
3/4x = -4x -19 . . . . . add 12
3x = -16x -76 . . . . . multiply by 4
19x = -76 . . . . . . . . . add 16x
x = -76/19 = -4 . . . . divide by 19
y = (3/4)(-4) -12 = -15 . . . . use the first equation to find y
The solution to this system of equations is ...
(x, y) = (-4, -15)
Answer:
The answer is option D.
<h2>LJ = 3.5</h2>
Step-by-step explanation:
<u>To find LJ we use the sine rule</u>
From the picture
LK / sin J = LJ / sin K
LK = 9
J = 89°
K = 23°
So now LJ is
9 / sin 89° = LJ / sin 23°
<u>Make LJ the subject</u>
That's
LJ = 9 sin 23° / sin 89°
LJ = 3.51
The final answer is
<h3>LJ = 3.5</h3>
Hope this helps you.
Answer:
Step-by-step explanation:
By thinking and putting ur brain in to it