mu = 1100 = population mean
sigma = 275 = population standard deviation
x = 1400 = raw score
z = z score
z = (x-mu)/sigma
z = (1400-1100)/(275)
z = 300/275
z = 1.0909090909091 approximately
z = 1.09
Convention is to round to two decimal places so that you can use a Z table to look up the area under the curve (which helps determine probability).
The positive z score is due to Paula's raw score being above the mean.
Answer:
41
Step-by-step explanation:
First, we need to find the sum of the ages of the first five people.
20 + 15 + 25 + 17 + 20 = 97
Then, multiply 23 by 6 to get the sum of the ages of all six people.
23 x 6 = 138
We then subtract 97 from 138 to get the age of the sixth person.
138 - 97 = 41
-8x⁵-12x⁴+30x³+19x²-4x-10
Step-by-step explanation:
-8x⁵+10x³+4x²-12x⁴+15x²+6x+20x³-10x-10..simplify
-8x⁵-12x⁴+10x³+20x³+4x²+15x²+6x-10x-10... like terms
-8x⁵-12x⁴+30x³+19x²-4x-10.. this is the final answer we can't add this anymore cause they ain't like terms the last form is this one.
(5x9)-(4x6) if you add parenthese
