If Figure F is rotated 180° and dilated by a factor of , which new figure could be produced?
1 answer:
You might be interested in
Can't factor
use quadratic
for
ax^2+bx+c=0
x=
given
1x^2-4x+85=0
a=1
b=-4
c=85
x=
x=
x=
x=
remember that √-1=i
x=
x=
x=2+/-9i
x=2+9i or x=2-9i
use quadratic
for
ax^2+bx+c=0
x=
given
1x^2-4x+85=0
a=1
b=-4
c=85
x=
x=
x=
x=
remember that √-1=i
x=
x=
x=2+/-9i
x=2+9i or x=2-9i
Remark
There is no short way to do this problem and no obvious way to get the answer other that to solve each part.
Solve
A
Multiply by 2
x + 1.6 = 2(x + 0.1) Remove the brackets
x + 1.6 = 2x + 0.1*2
x + 1.6 = 2x + 0.2 Subtract x from both sides
1.6 = x + 0.2 Subtract 0.2 from both sides
1.6 - 0.2 = x
1.4 = x
Circle A
B
Subtract 2x from both sides.
3x - 2x = 1.4
Circle B
C
Remove the brackets.
4x + 6 = 2x - 6 Add 6 to both sides
4x + 12 = 2x Subtract 4x from both sides.
12 = -2x Divide by - 2
12/-2 = x
x = - 6 Don't circle C
D
I'm going to be very scant in my solution of this. You can fill in the steps.
3x = 4.2
x = 4.2/3
x = 1.4
Circle D
