Answer:

Step-by-step explanation:
Solving trigonometric equations.
We are given a condition and we must find all angles who meet it in the provided interval. Our equation is

Solving for 5x:


The values for x will be


To find all the solutions, we'll give n values of 0, 1, 2,... until x stops belonging to the interval 
For n=0


For n=1


For n=2


For n=3


For n=4


For n=5 we would find values such as


which don't lie in the interval 
The whole set of results is

Answer:
b 1970s
Step-by-step explanation:
The maximum miles that she can travel 63 miles before she can walk.
11. AA 39/13= 3 14/7 = 2 not similar
12. SSS 15/12=1.25, 12/9= 1.33, 10/7= 1.43 not similar
13. Not similar
14.SSS 50/25= 2, 40/20=2, 20/10=2 similar
15. Exterior angle
16. Vertical angle
17. AA Q=C, B=N similar QBX= CNA by AA
18. SSS 22.5/18=1.25, 15/12=1.25, 18/0=18 Not enough information/ not similar
19.SAS 20/15=1.33, I=S, 15/9= 1.67 not similar
20. SAS 13/12=1.08, S=U, 10/8= 1.25 not similar
Answer: a = 
Step-by-step explanation:
Rewrite the equation as 4a + 9ab=K
Factor out a of 4a + 9b
a (4 + 9b) = K
divide each term by 4 + 9b and simplify
=