Answ.
10 and the rest i dont know
Step-by-step explanation:
The upper quartile is 9
Lower quartile: 5
Median: 8
Upper quartile: 9
9514 1404 393
Answer:
B, D
Step-by-step explanation:
The quadratic expands to ...
(2n -1)² = (2n)² +2(2n)(-1) +(-1)² = 4n² -4n +1
The coefficients can be factored out of the sum, so ...
∑(4n²) = 4∑n² for example
The sum of 60 ones is 60:

So, the sum can be written as ...

_____
It appears that the key to choosing the correct answers is paying attention to signs.
(2a*5)-3 is the answer best way to say it can't explain
Answer:
x = 100
y = 50
Step-by-step explanation:
if x = y + 50,
putting the value of x in first equation we get,
- x + 2y = 200
- y + 50 + 2y = 200
- 3y = 200 - 50
- y = 150 / 3
- y = 50
putting the value of y in second equation,
- x = y + 50
- x = 50 + 50
- x = 100
<em>i</em><em> </em><em>hope</em><em> </em><em>it</em><em> </em><em>helped</em><em>.</em><em>.</em><em>.</em><em>.</em>