Given:
The sequence is:
-15,-10,-4, 3, 11, ______
To find:
The next number.
Solution:
We have,
-15,-10,-4, 3, 11, ______
Here, the difference between two consecutive terms are:
Similarly,
It is clear that the difference difference between two consecutive terms is increasing by 1. So, the next difference must be (8+1)=9.
Let the next number be x. Then,
Therefore, the next number of the sequence is 20.
I think the answer is 2990.8 c.m
Hope that helps :)
Answer:
True.
Step-by-step explanation:
If we have for a sample of size n=25 a sample variance of 400, the standard error can be written as:
This way of calculating the standard error is the same used for estimating the standard deviation of the sample means for samples of size n=25.
Answer:
y=45-3x
Step-by-step explanation:
we want y, which is the number of hours left. to find this, we take:
hours left=total # of hours required - hours worked/day
so:
y=45-3x
(because x could be any number: 2 days, 3 days, etc.)
Answer:
-27
Step-by-step explanation:
-3 x -3=9
9 x -3= -27
