Answer:
10
β
Step-by-step explanation:
We can find this two ways, first by seeing in the step after it, cosines are canceled out. Since you already have 10
β
on the next step, you can assume that (since only the cosines changed and the cosine next ot the blank was removed), the value is 10
β
.
You can also use double angle formulas from the previous step:
(sin(2β) = 2 sin(β) cos(β))and find that:
5 sin (2β) sin(β) = 5 * (2 sin(β) cos(β)) sin(β)) = (10 sin(β) sin(β)) cos(β) =
10
β
cos(β)
But since cos(β) is already present, we can see that the answer is 10
β
Answer:
cos 60° = 1/2 because the angles are complements.
Step-by-step explanation:
H + 0.10h would be ur expression
Answer:
28 meters
Step-by-step explanation:
<u><em>The question in English is</em></u>
On a 32-meter roll of fabric, it cuts an eighth of the total. How many meters of fabric are left in a roll?
step 1
we know that
To find out how many meters of fabric were cut, multiply the total meters by the fraction that was cut

step 2
To find out how many meters of fabric are left, subtract the meters of fabric that were cut from the total meters of fabric
so

Answer:-10
Step-by-step explanation:
45 +5=-5x
-5x=50
X=-10