$3.50×0.8=$2.80
$2.80×0.9=$2.52
The new price is $2.52
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
The answer is 34
You would just add 4+4+1.5+1.5+10+10+3 and you should get 34
We need a perfect square, and we start with
This means that the binomial begins with 
, and 
is the double product of 
and the number we're looking for. So, that number is 
. Since
we need to add 
(and subtract it to leave the expression untouched. So, we have
Answer:
A) a = 25
B) b = 14
Step-by-step explanation:
hopefully this helps :)
