Answer:
It actually doesnt factor!
Step-by-step explanation:
Answer:
42
Step-by-step explanation:
L=2W+5
LW=42
(2W+5)W=42
2W^2+5W-42=0
(2W-7)(W+6)=0
2W-7=0
2W=7
W=3.5 ANS.
L=2*3.5+5=7+5=12 ANS.
PROOF:
3.5*12=42
42=42
(6,-8)(6,8)
d = sqrt ((x2 - x1)^2 + (y2 - y1)^2)
d = sqrt ((6 - 6)^2 + (8 - (-8)^2)
d = sqrt ((0^2 + 16^2)
d = sqrt 16^2
d = sqrt 256
d = 16 <==
I'm doing interval notations right now in pre-calculus, this how this notation should be written, (-∞,-2] or [4,∞), but this, (x ≤ -2] or [4 ≤ x), means the same thing. closed circle gets a bracket and an open circle gets a parenthesis, infinity always gets a parentheses because it is not a number. hope this helps
