Hi,
We know that:
a² -- b² = (a -- b)(a + b).
With a = x, and b = 4, we have:
x² -- 16 = x² -- 4² = (x -- 4)(x + 4).
As simple as that. Have you understood ?
Green eyes.
11 = 11*1
3=3*1
least common multiple = 3*11*1 = 33
33 days from today he will practice the guitar and the trombone
Answer:
the first one
Step-by-step explanation:
75 is constant plus 13.5 every time and you want it to be equal or more than 130
The sum of the angles shown is ...
720° = 3x + 240°
Then
480° = 3x
160° = x
Angle F = 160° -20° = 140°
1
7.3
x 9.6
-------
438
+ 647 0
69. 0 8, hope that helped
