Answer: 1/2

Step-by-step explanation:
Answer:
A cos C = 12/13
Step-by-step explanation:
cos theta = adjacent side/ hypotenuse
cos C = BC/AC
But we don't know BC, but we can find it using the Pythagorean theorem
a^2 +b^2 = c^2
5^2 +BC^2 = 13^2
25 + BC ^2 =169
Subtract 25 from each side
BC^2 = 169-25
BC ^2 = 144
Taking the square root of each side
BC =12
cos C = 12/13
Answer:
-6
Step-by-step explanation:
She added a negative number with a positive number
Answer:
5)23.80
Step-by-step explanation:
71.40/3=23.8
Have a nice Day , I would appreciate it if you could mark my answer brainliest
100 total people ... 35 exercise in the morning ... 45 in the afternoon ... and 20 at night
Jim is correct ...
35/100 is the ratio of people who exercise in the morning to total people.
45/100 is the ratio of afternoon exercisers to total people
20/100 is the ratio of night exercisers to total people