Yes if he practices X amount of hours and is told to practice X amount of hours than he practiced long enough
Answer:
69
Step-by-step explanation:
because it is like has beyer
N-O
———-
O
(New - old
—————
O)
8750-12500
——————-
12500
-3750
————
12500
=030%
They are a part of 2 dozen
First multiply all terms by z
8-z^2=4z
Then order into standard form
-z^2-4z+8=0
Multiply the equation by -1
z^2+4z-8=0
Plug into quadratic equation
-4±√16-4(-8)
-4±√48
(-4±4√3)/2
-2±2√3
Final answer: z=-2± 2√3
