Answer:
t₁ = 2,75 sec
Step-by-step explanation:
The ball will get h maximum when dh/dt ( its vertical component of the speed is equal to 0. At this moment the ball has flown half of the total flight time
Then
h(t) = - 4t * ( 4*t - 11 )
h(t) = - 16*t² + 44*t
Taking derivatives on both sides of the equation we get:
dh/dt = - 32*t + 44
dh/dt = 0 ⇒ -32*t + 44 = 0
t = 44/32 ⇒ t = 1,375 s
So twice this time
2*t = 2 * 1.375
Total time t₁ = 2,75 sec
We have that
In 2014 ---> t<span>he federal debt was 17.3 trillion
n 2010----> </span>the federal debt was <span>13,561,623 millions
we know that
one trillion----------> 1,000,000,000,000-----> 1 x 10</span><span>^12
so
17.3 trillion-------> 17.3 x 10</span>^12-----> 1.73 x 10<span>^13
[</span>1.73 x 10^13-13,561,623]=17,300,000,000,000-13,561,623]
=17,299,986,438,377
the answer is
17,299,986,438,377
Answer:
4/9
Step-by-step explanation:
Answer:
≈ 17.03 ( to 2 dec. places )
Step-by-step explanation:
Calculate the distance (d) using the distance formula
d = √(x₂ - x₁ )² + (y₂ - y₁ )²
with (x₁, y₁ ) = (- 7, - 2) and (x₂, y₂ ) = (6, 9)
d = 
= 
= 
= 
≈≈ 17.03
