Answer:
28 hours
Step-by-step explanation:
you have to add 12 + 16
which equals 28
bc if filipe practiced for 16 hours but it was 12 hour fewer than bianca
so boom you have your answer
28 hours
mark me brainliest
Ohio = 45,000, Cali = 160000, Texas = 270000, Connecticut = 5500, SC = 32000,
A would be true
B would be false
C would be false
D would be true, assuming "about" means you can round up a little.
hope this helped
Answer:
1.22 km/min
Step-by-step explanation:
Let Q be baloon height at a time t. Our goal is to determine the speed of the baloon at the moment.
The dy / dt velocity of the baloon when = π/5?
So we can restate the question as follows:
Owing to the fact d / dt = 0.2 rad / min at some stage = π/5
from fig:
tanθ = y/4
Differentiating w.r.t "t"
sec2 θ * dθ/dt = 1/4(dy/dt)
=> dy/dt = (4/cos2 θ)dθ/dt
At the given moment θ = and dθ/dt = 0.2 rad/min.
dy/dt = (4/cos2)* (0.2)
= 1.22 km/min
And the velocity of the baloon currently is 1.22 km / min.
S=i(n-1)+2*(n-1)+1 perhaps