436, 455, 280, 220, 353, 387, 119, 297, 241, 460, 393, 121, 146
Murrr4er [49]
First you would have to put the data in order.
119, 121, 146, 220, 241, 280, 297, 353, 387, 393, 436, 455, 460
To find the mean, you add up all the numbers and then divide by how many there are.
3908/13=300.6 (this is rounded to the nearest tenth)
To find the median, you have to look at the middle number
The median here is 297
To find the first quartile, you have to half the data set through the middle and find the middle number on the left
The first quartile is 220
Do the same thing for the third quartile, but look at the right data set
The third quartile is 393
Hope this helps!
Answer:
The answer is 4r² – 9
Denise answer is correct.
Step-by-step explanation:
One of the methods of solving the given equation [(2r – 3)(2r + 3)] is the FOIL method
Using the FOIL method (Used for multiplying binomials)
F stands for first
O stands for outer
I stands for inner
L stands for last
In this method, it means we will first multiply the first terms followed by multiplying the outer term, then multiplying the inner terms and finally, the last terms.
So, for the equation (2r – 3)(2r + 3)
First : (2r)(2r) = 4r²
Outer : (2r)(+3) = 6r
Inner : (–3)(2r) = – 6r
Last : (–3)(+3) = – 9
Adding the results we get
4r² + 6r – 6r – 9 (+6r and – 6r cancels out)
= 4r² – 9
∴ (2r – 3)(2r + 3) = 4r² – 9
Hence, Denise answer is correct
Answer:
The total number of Cats and Frogs
Step-by-step explanation:
Number of Birds Owned = B
Number of Cats = C
Number of Frogs =F
The expression that represents the total number of pets owned by Kelby
=B+(C+F)
NOTE: SUM/ADDITION = +
Therefore:
The expression C+F represents the total number of Cats and Frogs owned by Kelby.
Answer: 6.25
create a ratio of 2.5/2 = x/5 and solve for x. First multiple both sides by 10 so you get 12.5 = 2x. Then you get x = 6.25.
1.905×10 to the 7th power
