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bixtya [17]
3 years ago
12

What is |2x-3| less than or equal to 7??

Mathematics
2 answers:
Trava [24]3 years ago
8 0
|2x-3|=2x-3 ;x≥ 3/2
|2x-3|=-2x+3;x≤3/2
zalisa [80]3 years ago
7 0
|2x-3| </= 7. This needs to be split into 2 separate inequalities, due to the | | absolute value phrase.
1) 2x-3 </= 7 --> 2x-3 +3 </= 7 +3
2x </= 10 --> x </= 5
2) 2x-3 >/= -7 --> 2x-3 +3 >/= -7 +3
2x >/= -4 --> x >/= -2
These two inequalities can be placed together as: -2 </= x </= 5
So the numbers that are correct for the original inequality are: -2, -1, 0, 1, 2, 3, 4, 5
Hope that helps!
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Answer:

Step-by-step explanation:

Note: If you have any queries related the answer please do comment. I would be very happy to resolve all your queries.

Firstly we will make PMF

For X=0, P=(4/5)^3=64/125

For X=1, P=C(3,1)*(1/5)*(4/5)^2=3*16/125=48/125

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E[X]^2=0.36

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For f(x) = 3x + 1 and g(x) = x2 - 6, find (f + g)(x).
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Lelechka [254]

Answer:

y=3x+25

Step-by-step explanation:

For the equation y=3x+5, the slope is 3. Since the line will be parallel to it then this is the slope of the new line as well. Use the point-slope form to write the equation, then simplify and convert into the slope intercept form.

(y-13)=3(x--4)

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Answer:

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Step-by-step explanation:

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