Answer:
11/61
Step-by-step explanation:
cos b = adj side/hypotenuse
=11/61
1650
1375
15400
Hope this will be helpful
It should be a 80 degrees.
Answer:

Step-by-step explanation:
height is equal to one third times pi times radius squared times volume
Answer:
See below.
Step-by-step explanation:
a)
105/3 = 35
35/5 = 7
7/7 = 1
429/3 = 143
143/11 = 13
13/13 = 1
105 = 3 * 5 * 7
429 = 3 * 11 * 13
Not co-prime
For the other parts of the problem, do the same I did above. Find the prime factorizations of both numbers, and see if they have any prime factors in common.