(-3s +2t)(4s -t) = -12s^2 +3st +8st -2t^2 = -12s^2 +11st -2t^2 so the last one choice is right sure
Answer:
x + 2
Step-by-step explanation:
Let x be the unknown number,
For making the diagram to model this problem,
Take a grid that shows x, ( shown below )
Then take a grid that shows 2.
Join these grids,
We obtain a grid, showing x + 2
Hence, the required expression that represents the given situation is x + 2
<span>What is the range of data?
= 96 - 54 = 42
answer
B- 42
------------
</span><span>What is the median of data?
median is the middle number
=(74+75)/2 = 74.5
answer
C-74.5
------
</span><span>What is the mode of data?
mode is the one that </span><span>occurs most often
</span><span>75 is repeated twice
answer
C-75
</span>
Answer:
The range is y≥0
Step-by-step explanation:
The shape of this graph is a parabola
You may see this by using the Desmos calculator and typing y=x^2 if you would like to visualize.
(a) The function y = x^2 simply takes whatever number you feed it (x) and outputs x squared.
For example
y = (2)^2=4
y = (3)^2 = 9
(b) To graph x^2 simply make a table of values and plug in 0 -> however high you would like to go ( usually to 5 or so is fine but you could go to infinity).
Example
y = x^2
Y | X
________
2 | 4
3 | 9
4 | 16
In this case the function's range is y≥0 because all y values will be greater than or equal to 0.
If you are wanting to learn how to specifically graph this you can look up (Graphing y = x²) if my quick graphing explanation back at mark (b) does not help.
A² - 225 = (a-15)(a+15)
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