Step-by-step explanation:
Discriminant : k² - 4(12)(27) < 0
So k² - 1296 < 0, -36 < k < 36.
Answer:
0.4
Step-by-step explanation:
so, Katherine can do 0.1 of the job per hour. (if she needs 10 hours for the job, each hour she can do the whole divided by the time, so 1/10, which is 0.1)
if in two hours she and Marina can be done, then Marina will do 1(the whole job)-2/10 (twice as much as she can do in an hour)=0.8 of the job. So if Marina does 0.8 of the job in two hours, each hour she will do half of it: 0.4 - and this is the correct answer
Answer: $63.16
<u>Step-by-step explanation:</u>
Probability of winning is 
. Which means that it would take 38 spins to win one time.
Since the average player spins 60 times then the number of wins is:
= 1.58
So, the average person wins: ($700 + $20) x 1.58 = $720(1.58) = $1136.84
and the average person spends: $20 x 60 spins = $1200.00
The net gain for the house is $1200.00 - $1136.84 = $63.16
The answer is $4419.76
A = P (1 + r/n)^nt
Therefore,
A = 4000 (1 + 0.05/52)^52 x 2
A = 4000 (1.00096)^104
A = 4000 (1.1049)
A= 4419.76
Hope that helps!
(I'll take brainliest thank you ;))
Answer:
At Day 27, approximately 50.2% of the population is uninfected and that
means that approximately half of the population has been infected.
