Answer:
the answer is 5x divide by 12
Answer:
1.5 hours.
Step-by-step explanation:
Football practice is 3 hours long, divided into 2 equal parts.
3/2=1.5.
So, 1.5 hours or 1 hour and 30 minutes is spent doing warm up exercises and the other 1 hour and 30 minutes is spent practicing football plays.
Answer:
3rd I think
Step-by-step explanation:
Answer:
1 ) ∠1 = 120 ∠2 = 120
2 ) ∠1 = 125 ∠2 = 125
Step-by-step explanation:
Mark me brainly plz
Answer:
f'(x) = -1/(1 - Cos(x))
Step-by-step explanation:
The quotient rule for derivation is:
For f(x) = h(x)/k(x)
In this case, the function is:
f(x) = Sin(x)/(1 + Cos(x))
Then we have:
h(x) = Sin(x)
h'(x) = Cos(x)
And for the denominator:
k(x) = 1 - Cos(x)
k'(x) = -( -Sin(x)) = Sin(x)
Replacing these in the rule, we get:
Now we can simplify that:
And we know that:
cos^2(x) + sin^2(x) = 1
then: