Yes, it is fairly reasonable... if you round it..
however, if you want exact calculations, then it might not be so reasonable, because it will go over the total amount
so if you round it, then yes it is fairly reasonable
Answer:
206
Step-by-step explanation:
1648/8
206 each
Let me break this down a little bit:
Joe has a savings account with $422 in it.
He also has a credit card, meaning that whatever he spends on his credit card, he'll have to pay back later.
So far, he has purchased $524 worth of merchandise.
If you subtract $422 from $524 it will equal =$122 he owes.
Therefore, Joes overall balance is reflected as a POSITIVE number.
The $122 dollars is represented as what he owes which would be a NEGATIVE number.
The ultimate answer to this question is POSITIVE.
Hope this helps! :)
First, you need to find the slope of HI.
Find two points. (On the line)
(-5,5) (1,9) I’m just going to use the points for H and I.
Plug it into the slope formula.
M= (y2-y1)/(x2-x1)
M= (9-5)/(1-(-5) Switch the sign to be positive, two negatives equal a positive.
M= 4/6
Now, you just need to find the opposite reciprocal for the slope of the perpendicular line.
Flip 4 and 6. Make it negative.
-6/4
Simplify.
-3/2 or -1.5
I hope this helps!
~kaikers
Calculate the value of z and its probability, since with this we can know how likely it is that this will happen.
We have that the mean (m) is equal to 8.3, the standard deviation (sd) 1.2 and the sample size (n) = 15
They ask us for P (x =7.2)
For this, the first thing is to calculate z, which is given by the following equation:
z = (x - m) / (sd / (n ^ 1/2))
We have all these values, replacing we have:
z = (7.2 - 8.3) / (1.2 / (15 ^ (1/2))
z = -3.55
With the normal distribution table (attached), we have that at that value the approximate probability is:
P (z = -3.55) = 0.0001
The probability is 0.01 %
This affirms that the students do not sleep what the study says because the probability of this happening according to the survey is almost nil.
