1)
I:y=3x-4
II:9x-3y=14
substitute y into II:
9x-3*(3x-4)=14
9x-9x+12=14
12=14
this is obviously not equal so there is no solution, the lines are parallel
2)
I:y=4x+6
II:5x-y=6
substitute y into II:
5x-(4x+6)=6
5x-4x-6=6
x=12
substiute x into II:
5*12-y=6
-y=6-60
-y=-54
y=54
the solution is (12,54)
Answer:
A 5,12,13
Step-by-step explanation:
workout Pythagorean theory and find the hypotenus
Answer:
The 2nd one/Green
Step-by-step explanation:
A plane figure with five straight sides and five angles.
Answer:
$13.50 is the tip
OR
$81.01 is total bill
Step-by-step explanation:
total of bill multiplied by 20%
$67.51 x .20 = $13.50
For total bill amount:
$67.51 + $13.50 = $81.01
