1. sometimes 2. always 3. always 4. never 5. sometimes. B.t.w I really hope this helps
The equation is equivalent to 1/cos(2x)-2=sin(2x)/cos(2x). Make the denominator cos(2x) for all terms, we get 1-2cos(2x)=sin(2x). Since cos^2(2x)+sin^2(2x)=1, let cos(2x)=a, substitute sin(2x) by +-\sqrt(1-a^2), and solve the equation with only one variable a. We get a=4/5 or 0, but cos(2x) cannot be 0, otherwise sec(2x) is undefined. 2x=36.9 degrees, so x=18.9 degrees approximately.
Answer:
200 miles in 4 hours hope this helps and u get it in on time
Answer:
5 days
Step-by-step explanation:
75 = 10d +25
-25 -25
50 = 10d
/ /
10 10
5 = d
2x0.19= 0.38 that's what you get if you multiply 2x0.19 I hope I helped :)
I hope I'm not to late :/
