Answer:
(y - x)/(y + x)
Step-by-step explanation:
(1/x - 1/y)/(1/x + 1/y) =
= (1/x - 1/y)/(1/x + 1/y) × (xy)/(xy)
= (y - x)/(y + x)
Answer:
(3, 1), (3, 2)
Step-by-step explanation:
Pairs that have the same x-value are not allowed in a relation that is a function.
Answer: the answer is either the first one or the third not exactly sure
Step-by-step explanation:
Answer:
The question is missing, so I will answer all the solution for each possible system of two equations.
Step-by-step explanation:
The equations
x + 5 y = 10 (red)
3 x - y = 1 (blue)
x - 5 y = 10 (green)
3 x + y = 1 (purple)
are shown in the picture atatched. The intersection between two lines is the solution of their system.
<u>system:</u>
x + 5 y = 10 (red)
3 x - y = 1 (blue)
<u>solution</u>: (0.938, 1.813)
<u>system</u>:
x + 5 y = 10 (red)
x - 5 y = 10 (green)
<u>solution</u>: (10, 0)
<u>system</u>:
x + 5 y = 10 (red)
3 x + y = 1 (purple)
<u>solution</u>: (-0.357, 2.071)
<u>system</u>:
3 x - y = 1 (blue)
x - 5 y = 10 (green)
<u>solution</u>: (-0.357, -2.071)
<u>system</u>:
3 x - y = 1 (blue)
3 x + y = 1 (purple)
<u>solution</u>: (0.333, 0)
<u>system</u>:
x - 5 y = 10 (green)
3 x + y = 1 (purple)
<u>solution</u>: (0.938, -1.813)
Answer:
x = 15
Step-by-step explanation:
you have a straight line and a straight line measures 180. You have a 90 degree symbol.
180 = 90 + 47 + 2x + 13
180 = 150 + 2x Subtract 150 from both sides of the equation
30 = 2x Divide both sides by 2
15 = x