Answer:
6 and 48
Step-by-step explanation:
when t=1, the expression is 6
when t=4, the expression is 48
:)
60 percent because if you divide if you multiply 18 by 100 it gives you 18000 then divide it by 30 it gives you 60
Answer: 
<u>Step-by-step explanation:</u>
Note the following identities: tan² x = sec²x - 1

tan² x + sec x = 1
(sec² x -1) + sec x = 1
sec² x + sec x - 2 = 0
(sec x + 2)(sec x - 1) = 0
sec x + 2 = 0 sec x - 1 = 0
sec x = -2 sec x = 1

Try this solution:
The correct answer is 'a' only, where x= -4;-1 and y= -6;-21
Letter B I have done this before