X^2-4x-5=0
according viet’s theorem
the roots are 5 and -1
Answer:
(a) 1, 2, 3, 6, 8
Step-by-step explanation:
Given


Required
The sequence of hours worked each day
<em>See attachment for options</em>
From the question, we understand that:

This means that, the middle number is 3 (when sorted)
So, we can conclude that (b) and (c) cannot be true because their middle numbers are 6 and 5 respectively
Next, is to determine the mean of (a) and (d)
The mean of a data is calculated as:

So, we have:
(a)



(d)



Option (a) is true, because it has:


The answer i got is b<-18.. i’m not sure if it’s right but you could try ! :).. i’m very sorry if you get it wrong .
What’s your question to ur homework
Answer: the first, second, and fourth are correct.
Step-by-step explanation:
28-10%=25.2
28-25%=21
28-35%=18.2