Answer:
93
Step-by-step explanation:
First differences increase by 4 each time. The given numbers are a quadratic sequence that can be described by 2n² -2n +9. The 7th term would be 93.
_____
First differences are ...
13-9 = 4, 21-13 = 8, 33-21 = 12, 49-33 = 16, 69-49 = 20
Second differences are ...
8-4 = 4, 12-8 = 4, 16-12 = 4, 20-16 = 4
When second differences are constant, the sequence can be represented by a second-degree polynomial function. The leading coefficient is half the value of the second differences.
Answer:
idk she sjssjwsjssksjw. w r w. r w r e. e s. s. w
Step-by-step explanation:
e. e e e. s d. t r w y t e. d y e e. t r w r t r
Answer: 45°
Step-by-step explanation: The formula for finding the measure of each exterior angle of a regular polygon is simply 360/n where <em>n</em> represents the number of sides of the polygon.
Since our polygon has 8 sides, we plug 8 in
for <em>n</em> and we have 360/8, which is 45.
So our answer is 45°.
Answer:
I have no idea what this is asking you to do bc it doesn't even make sense.
Step-by-step explanation:
(49-25)=8
Answer: The variance of the data is 0.25, therefore second option is correct.
Explanation:
From the given graph it is noticed that the graph is symmetric along x = 4 or it is a bell shaped graph. So, the data follows the normal distribution.
The graph of normal distribution is bell shaped graph symmetric along the mean. The graph of normal distribution is shown below.
Since the given graph is symmetric along x = 4 therefore the mean of the data is 4.
Let the variance be . So, the given data follows normal distribution with mean 4 and variance .
In the below graph the point immediate left to the mean is and in the given graph it 3.5
Therefore, the variance of the data is 0.25, therefore second option is correct.