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emmainna [20.7K]
3 years ago
11

Solve the inequality.−8≤2/5(k−2) The / is not a division sign.

Mathematics
1 answer:
Dvinal [7]3 years ago
7 0

Answer: x is grater or equal to -18

Inter el notation

[-18,oo)

Step-by-step explanation:

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64,500+38,970, I think.
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Let f(x)=11-3xm compute f(2)+f^-1(2)
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Taking f(X) to be y
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3 years ago
How many solutions exist for the given equation?
NikAS [45]

There is only one solution which is x = -370 to the given equation 0.75(x + 40) = 0.35(x + 20) + 0.35(x + 20) option second is correct.

<h3>What is linear equation?</h3>

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

We have a linear equation in one variable:

0.75(x + 40) = 0.35(x + 20) + 0.35(x + 20)

After rearranging and simplification:

\rm 0.75\left(x+40\right)=0.7\left(x+20\right)

\rm 75\left(x+40\right)=70\left(x+20\right)

\rm 75x+3000-3000=70x+1400-3000

\rm 75x=70x-1600

x = -370

Thus, there is only one solution which is x = -370 to the given equation 0.75(x + 40) = 0.35(x + 20) + 0.35(x + 20) option second is correct.

Learn more about the linear equation here:

brainly.com/question/11897796

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8 0
2 years ago
Daniel wrote the following two-column proof for the given information. Given: AB = 3x + 2; BC = 4x + 8; AC = 38 Prove: x = 4 Sta
nadezda [96]
Given: 
1. AB = 3x +2;  BC = 4x + 8;  AC = 38

2. AB + BC = AC                 incorrect (not an angle angle addition postulate)
3. 3x+2 + 4x + 8 = 38         correct
4. 7x + 10 = 38                    correct
5. 7x = 28                           correct
6. x = 4

Daniel made an error on line 2.
8 0
4 years ago
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