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marin [14]
2 years ago
14

Given: 10-x+3x=-4(x-4) prove: x=1 and i have to use proofs for each step ex:division property​

Mathematics
1 answer:
lisabon 2012 [21]2 years ago
7 0

Answer:

10+x+3x=-4(x-4)

10+2x=-4x+16

collect like-terms

2x+4x=16-10

6x=6

divide both by 6 to find the value of x

therefore, x is equal to 1

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Expand & simplify 4(t+2)+6(t-4)
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Answer:

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Step-by-step explanation:

4(t + 2)+ 6(t - 4)

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3 years ago
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Determine the domain and range of the function f(x)= 3x+2. Also, state the intervals where the function f(x)= 3x+ 2 is increasin
aev [14]

Answer:

Increasing on it's domain (-\infty,\infty) because the slope is positive.

The domain and range are both all real numbers, also known as

(-\infty,\infty).

Step-by-step explanation:

All domain really means is what numbers can you plug in and you get number back from your function.

I should be able to plug in any number into 3x+2 and result in a number. There are no restrictions for x on 3x+2.

The domain is all real numbers.

In interval notation that is (-\infty,\infty).

Now the range is the set of numbers that get hit by y=3x+2.

Well y=3x+2 is a linear function that is increasing.  I know it is increasing because the slope is positive 3. I wrote out the positive part because that is the item you focus on in a linear equation to determine if is increasing or decreasing.

If slope is positive, then the line is increasing.

If slope is negative, then the line is decreasing.

So y=3x+2 hits all values of y because it is increasing forever.  The range is all real numbers. In interval notation that is (-\infty,\infty).

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3 years ago
Anybody can answer this for me ?
Romashka [77]

What are you supposed to be doing

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Step-by-step explanation:

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