Answer:
tree=4.5 meters tall
Step-by-step explanation:
1.5*3=4.5
These are vertical angles so they are equal so
6a + 11 = 2a + 83
now solve for a
You want to end up with . Expand this using the angle sum identity for sine:
We want this to line up with . Right away, we know .
We also need to have
Recall that for all ; this means
Then
So we end up with
Answer:
Choice 'D' (10x + 9) (10x-9) is the correct answer
Step-by-step explanation:
100x^2 - 81
This is a difference of squares...
therefore = (10x + 9) (10x - 9)
Answer: 48 millas por hora
Step-by-step explanation: 40t + 2= 60t - 3, es t = .25.
la distancia de su casa a su trabajo es 40(0.25 +0.05) =12 millas allí para su velocidad promedio debería ser 12/0.25 = 48 millas por hora