Answer:
9. 5 Hours
Step-by-step explanation:
8:30 AM to 12:00 PM = 3.5 hours
12:00 PM to 6:00 PM = 6 hours
Total = 6 + 3.5 = 9.5 hours
Hope this answer helps you :)
Have a great day
Mark Brainliest
The first one is your answer
Answers:
- cos(2theta) = -119/169
- cos(theta) = -5/13
=====================================================
The given info is:
- sin(theta) = 12/13
- theta is in quadrant II
From that, we can use the pythagorean trig identity to find that cos(theta) = -5/13. Keep in mind that cosine is negative in quadrant II.
Now use the trig identity below to compute cos(2theta)

Other options you could use are these identities

or

13. they are not, because the parentese's make it different by applying the order of operations to the two sections, rather than in a long line.
the first one is equal to 1/40 1/4 * 10 = 1/40
second one is equal to 3/8 10 / 40 / 2 *5 = .25 / 2 * 5 = 3/8
14. g + w = 40 since there are both grape and watermelon in the entire jar of 50
15. algebraic because it involves variables and not just numbers dependent on PEMDAS