X + y = 1
x + 3y = 9
Subtract the second equation from the first.
-2y = -8
divide both sides by -2
y = 4
Plug 4 back into either equation and solve for x.
x + y = 1
x + 4 = 1
subtract 4 from each side
x = -3
(-3, 4)
-4x+2=9 would be the answer for this equation
Answer:
b
Step-by-step explanation:
Answer:
∠ DFE = 15°
Step-by-step explanation:
The inscribed angle DFE is half the measure of its intercepted arc, that is
∠ DFE =
DE =
× 30° = 15°
Answer:
58 and 1/2
Step-by-step explanation: