My favorite is probably aweSAMdude
First let's find the angles a and b.
We have then:
sin a = 4/5
a = Asin (4/5)
a = 53.13 degrees.
cos b = 5/13
b = Acos5 / 13
b = 67.38 degrees.
We now calculate cos (a + b). To do this, we replace the previously found values:
cos ((53.13) + (67.38)) = - 0.507688738
Answer:
-0.507688738
Note: there is another way to solve the problem using trigonometric identities.
Answer:
C
Step-by-step explanation:
I believe it is c if I counted right
Answer:
280in
Step-by-step explanation:
V=Length x width x height
V=8 x 3.5 x 2= 56
56 x 5 blocks = 280