Answer:
2
Step-by-step explanation:
I have a feeling that it’s 56 because a lot of trash is being thrown
Answer: uh explain more about the question cause im bad at this sorryyyy :')
Step-by-step explanation:
have a good day im sorry i feel for weird right now heh..
Answer:
a. 81.5%
Step-by-step explanation:
The z-score for 400 is ...
Z = (X -μ)/σ = (400 -500)/100 = -1
The z-score for 700 is ...
Z = (700 -500)/100 = 2
The empirical rule tells you that 68% of the distribution is within ±1σ of the mean, and 95% is within ±2σ of the mean. Half of that first number is in the range Z = -1 to 0, and half that second number is in the range Z = 0 to +2. So, the probability you want is ...
(1/2)(68%) + (1/2)(95%) = 81.5% . . . . matches choice A
Answer:
7x + 9
Step-by-step explanation:
5x + 2x = 7x
4 + 5 = 9
