Solve the system of equations
5
x
+
4
y
=
2
5x+4y=2 and
−
8
x
−
6
y
=
0
−8x−6y=0 by combining the equations.

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

(
−
8
x
(−8x
−
6
y
−6y
=
=
0
)
0)
5
x
5x
+
4
y
+4y
=
=
2
2
−
8
x
−8x
−
6
y
−6y
=
=
0
0
try 0
x
x
+
+0
y
y
=
=

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.

Acompany manufactures large valves, packed in boxes. a shipment consists of 1500 valves packed in 75 boxes. each box has the outer dimensions 1.2 x 0.8 x 1.6 m and the inner dimensions 1.19 x 0.79 x 1.59 m. the boxes are loaded on a vehicle (truck + trailer). the available capacity in the vehicle combination is 140 m3. each valve has a volume of 0.06 m3. - calculate the load factor on the box level (%). - calculate the load factor on the vehicle level (%). - calculate the overall load factor (%).

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.