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3 years ago

14

If x = 2, y = 3 and z = 4, calculate the value of each of the following algebraic expression: 3x + 3y =

1 answer:

MaRussiya [10]3 years ago

4 0

If x = 2 and y = 3 then it can be solve as

3(2) + 3(3)

6 + 9

15

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F(x)=<img src="https://tex.z-dn.net/?f=%28x%2B1-%7Cx-1%7C%29%2F2" id="TexFormula1" title="(x+1-|x-1|)/2" alt="(x+1-|x-1|)/2" ali

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$f(g(x))=\dfrac{|x|+1-||x|-1|}{2}$

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3 years ago

An elevator went up 15 floors, down 9 floors, up 11 floors, and down 19 floors. Find the net change.

NARA [144]

Answer: The net change would be -2.

Step-by-step explanation: The upward change of elevator is represented by positive sign while the downward change represented by negative sign.

Given, First the elevator goes up 15 floors, change = + 15, Then it goes 9 floors down, change = -9, Then it goes 11 floors up,Change = + 11, Finally, it goes 19 floor down, Change = - 19 So, the net change = sum of total changes = 15 - 9 + 11 - 19 = -2

your welcome!

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2 years ago