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4 years ago

Solve the following equation x+5=12

2 answers:

8 0

X+5=12
5-X+5=12-5
X=7
SOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO THATS ALL YOU NEED TO DO

Arada [10]4 years ago

5 0

The first thing you do is subtract negative 5 on both side because we want to get x by itself.
Then we subtract 12 -5 which get us 7.
So, the solution is x=7.
And that how you solve the equation.

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<span>Perimeter of a rectangle: 2(l + w)
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3 years ago

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The Solution:

Given:

Required:

Find the standard deviation of the probability distribution.

Step 1:

Find the expected value of the probability distribution.

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Step 2:

Find the standard deviation.

$Standard\text{ Deviation}=\sqrt{\sum_{i\mathop{=}0}^3(x_i-\mu)^2P_(x_i)}$ $=(0-2)^2(0.25)+(1-2)^2(0.05)+(2-2)^2(0.15)+(3-2)^2(0.55)$ $=4(0.25)+1(0.05)+0(0.15)+1(0.55)$ $=1+0.05+0+0.55=1.60$

Thus, the standard deviation is 1.60

Answer:

1.60

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