Evaluating 
we get 1590
Step-by-step explanation:
We need to evaluate
Solving:
So, evaluating we get 1590
Keywords: Solving the expressions
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Answer:
204/325
Step-by-step explanation:
You can work this a couple of ways. We expect you are probably expected to use trig identities.
cos(A) = √(1 -sin²(A)) = 24/25
sin(B) = √(1 -cos²(B)) = 12/13
cos(A -B) = cos(A)cos(B) +sin(A)sin(B) = (24/25)(5/13) +(7/25)(12/13)
= (24·5 +7·12)/325
cos(A -B) = 204/325
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The other way to work this is using inverse trig functions. It is necessary to carry the full calculator precision if you want an exact answer.
cos(A -B) = cos(arcsin(7/25) -arccos(5/13)) = cos(16.2602° -67.3801°)
= cos(-51.1199°) ≈ 0.62769230 . . . . (last 6 digits repeating)
The denominators of 25 and 13 suggest that the desired fraction will have a denominator of 25·13 = 325, so we can multiply this value by 325 to see what we get.
325·cos(A-B) = 204
so, the exact value is ...
cos(A -B) = 204/325
The answer I believe is the second one to the top
9
132 divided by 16 is 8.25 but u still need to sit the remainder so 9
There are seven people who each want half an ounce of brocolli. So, you multiply 1/2 by 7, which would be around 3 and 1/2. The actual number, will be 3 and 1/2 though as well.
