Answer:
Step-by-step explanation:
a). 
= 
= 
= 
[Since, i = 
]
b). 
= 
= 
= 5 ± 2i [Since, i = ]
c). 
= 
= 
= 
= 
[Since, i = ]
Answer:
425p + 100
Step-by-step explanation:
only answer that makes sense
Given:
ratio of stickers to erasers: 3 to 8
She has 12 stickers.
3:8 = 12:x
3x = 8*12
3x = 96
x = 96/3
x = 32 erasers.
Mrs. Robbins has 32 erasers.
Select the correct answer from the drop-down menu. consider this population data set: 4, 6, 7, 11, 12, 18, 26, 23, 14, 31, 22, a
elena55 [62]
The correct answer from the drop-down menu is 3.5.
<h3>What is the mean value?</h3>
The mean is the average of the numbers. It is easy to calculate add up all the numbers, then divide by how many numbers in the data set.
Therefore the population mean is the sum of the 12 data set values divided by 12
4 + 6 + 7 + 11 + 12 + 18 + 26 + 23 + 14 + 31 + 22 + 12 = 186.
Therefore the population mean
= 186/12
= 15.5.
The sample mean is given by the sum of the 4 sample values divided by 4
11 + 31 + 22 + 12
Sum = 76.
Therefore the sample mean
= 76/4
= 19.
The sample mean is more than the population mean by
= 19 - 15.5
= 3.5.
To learn more about the mean visit:
brainly.com/question/21577204
Answer:
$230
Step-by-step explanation:
1970-2200
=-230
The number is a negative, remove the negative to find out how much you <u>owe</u>
