Answer:
B. (-1, 2) and (4,7)
Step-by-step explanation:
Solve for the first variable in one of the equations, then substitute the result into the other equation.
angle 9 and angle 10 are supplementary. They both add up to 180°.
The answer would be 95 with no remainder
Answer:
21.32
Step-by-step explanation:
42.64/2=21.32
Answer:
x = 9
Step-by-step explanation:
2 sides are 4 less than x, that is x - 4
The perimeter is the sum of all 3 sides, thus
x + x - 4 + x - 4 = 19, that is
3x - 8 = 19 ( add 8 to both sides )
3x = 27 ( divide both sides by 3 )
x = 9
