Step-by-step explanation:
let's simply do the multiplications and then compare with the original.
(x-m)² + n
right ?
or is it
let's go for the first.
x² - 2mx + m² + n = x² - 3x
-2mx + m² + n = -3x
fun there we see two things :
-2m = -3
m = 3/2
and
m² + n = 0
(3/2)² = -n
9/4 = -n
n = -9/4
so our transformed expression looks like
(x - 3/2)² - 9/4
Answer:
300000
30000
3000
300
Step-by-step explanation:
Use the zero's trick for 10's.
Total cost=costofhaircut+tip
tip=costofhaircut times percent tip
percent tip=15%
percent means parts out of 100
15%=15/100=0.15
cost of haircut=16
tip=16 times 0.15=2.4
total cost=16+2.4=18.4
total cost=$18.40
Answer:
128°
Explanation:
1 = 4 because of vertical angles are the same
4 = 5 because of alternate interior angles are the same
5 = 8 vertical angles
8 = 9 alternate interior angles
9 = 12 vertical angles
180° = 12 + 11
11 = 180° - 52°
angle 11 = 128°