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

Answer:
4 hours and 30 min every day
Step-by-step explanation:
2 days in weekend so 4 hour and 30 times two is 9 hours your welcome
The larger number is 200. The ratio is 20:10 and 200 + 100 = 300.
Answer:
5x -18
<h2>I hope this helped! </h2><h3>have a nice day! :)</h3>