R=-1/800(x^2-2400x)
use R'=0
R'=1/400x-300, 1/400x=300 => x=1200 critical point
take R(1200), we know its max bcuz of the orientation of R
Answer:
D
Step-by-step explanation:
Took the test on edge2020
X and 1 are common factors eh
Answer:
15
Step-by-step explanation:
12 13 14 15 17 19 22
you need to arrange the numbers in order from the smallest value to the largest
1/2 ÷ 1/2
= 1/2 ÷ 2/1
= 1/2 × 2/1
= 2/2
= 1