A
50 cents to 2.50 *I think I am not sure my sister has the same problem she said that one*
Answer i've done the math multiple times and everytime i get the answer 21,950. i don't think i'm doing the math wrong, maybe try asking the teacher or whoever is the one grading it cause it could be a typo or something like that.
Step-by-step explanation:
Answer:
f'(4)=0
Step-by-step explanation:
Answer:
b. -36/77
Step-by-step explanation:
As 0 < x <
/2 => tan x > 0
As 0< y <
/2 => tan y > 0
We have the formula:
As tan x = 1/(cotx) => 
As tan x > 0 => tan x = 8/15
As tan y > 0 => tan y = 4/3
As tan (x-y)=