Answer:
x = 180
Step-by-step explanation:
First, you need to know
1. Double-angle formula:
cos(2x) = 
2. Pythagorean identity:
Back to your problem, replacing the variable by the above:
By Double-angle formula
By Pythagorean identity
Given 
, we know -1 < sinx < 1, for every x ∈ R
Put n=2 ,
f(2+1) = f(2) => f(3) = f(2) = 9
now, put n=1,
f(1+1) = f(1) => f(2) = f(1) = 9
Since there are 28 tens which is basically 28 rows of 10 all you have to do is 28 times 10. Whatever number times ten has a 0 after it so the answer is 280
Answer:
0.5
Step-by-step explanation:
6/13 is the same as saying 6 ÷ 13
6 ÷ 13 = 0.4615384615
The first position after the decimal is the tenths column. Round up, because 6>5.
Total change in relation to when Greg first started decreasing his run time : -6 minutes (at the end of 6 weeks)
Expression : -x (x is the number of weeks)
