Answer:
+ 6
Step-by-step explanation:
(-2)·(-3) = + 6
(-)·(-) = +
Answer:
17c - 2
Step-by-step explanation:
Firstly, add the normal numbers together:
7c + 4 + 10c - 6
4 - 6 = -2
7c + 10c - 2
Now, the two numbers with a c value can be added together:
7c + 10c = 17c
This returns the answer:
17c - 2
Hope this helps!
Answer: 1.509
Step-by-step explanation:
The formula of Margin of Error for (n<30):-

Given : Sample size : n= 22
Level of confidence = 0.99
Significance level : 
Using the t-distribution table ,
Critical value : 
Standard deviation: 
Then, we have

Hence, the margin of error for a 99% confidence interval for the population mean =1.509
Answer: 4 weeks (1 month)
Step-by-step explanation: If it took 14 hours for something half the size of the striped scarf then you will just double the time. 1 hour a day will be 28 days which is 4 weeks and almost a month.
To the risk of sounding redundant,

and surely you'd know what that is.