Answer:
2×5=10
Step-by-step explanation:
Answer:
(3, 1)
Step-by-step explanation:
The midpoint formula is (x1 + x2)/2, (y1 + y2)/2.
(-2, -6) = (x1, y1)
(8, 8) = (x2, y2)
Plug these values into the midpoint formula and solve.
________
(x1 + x2)/2, (y1 + y2)/2
(-2 + 8)/2, (-6 + 8)/2
(3, 1)
21x-9+63=180
21x+54=180
21x=126
x=6
Assuming that the blank space is a plus
2x^2+12x-14=0
isolate x
(2x^2+12x)-14=0
undistribute 2
2(x^2+6x)-14=0
take 1/2 of 6 and square and add negative and positive
2(x^2+6x+9-9)-14=0
factor perfect squrae
2((x+3)^2-9)-14=0
distribute
2(x+3)^2-18-14=0
2(x+3)^2-32=0
2(x+3)^2=32
divide 2
(x+3)^2=16
sqrt
x+3=+/-4
minus 3
x=+/-4-3
x=-7 or 1
2nd to last option
Distrbutive : (7×200)+(7×50)+(7×6)
expanded : 7×(200+50+6)
