What is the mean of -3, 4, 8, -1, -4, -2, 0, 2, 5, 2, -3, 1
Rom4ik [11]
Answer:
3/4 or .75
Step-by-step explanation:
The mean means the average so you would add up all the numbers then divide by how many numbers there are
-3+4+8+-1+-4+-2+0+2+5+2+-3+1= 9
9/12= 3/4 or .75
depends whether or not you want it in fraction or decimal form
Answer:
(when x = 0)
Step-by-step explanation:
The initial value of the exponential equation is:



Answer:
about 70 years
Step-by-step explanation:
Life expectancy (e) improves by 5.7 years every 10 years, so 5.7/10 = 0.57 years per year. For t years after 2009, it can be modeled by ...
e = 0.57t +80
We want to find when that is 120:
120 = 0.57t +80
40 = 0.57t
40/0.57 = t ≈ 70.2
About 70 years from 2009, humanity may achieve a life expectancy of 120 years.
Answer:
they would be 58 rn. and simp means someone who is willing to do anything for someone they like. they try to get with that person everyday and they like them alot.
Step-by-step explanation:
hope this helped
The first one. X is greater than or equal to -1