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OLga [1]
3 years ago
15

HELP! My teacher didn't teach half the material! How do I do this!?!?!?!

Mathematics
1 answer:
Sladkaya [172]3 years ago
5 0

Answer:

<h2>x=-0.3</h2>

Step-by-step explanation:

1-(-7.2x+3.5)=5+3(7.4x-1) first parenthesis

1+7.2x-3.5=5+22.2x-3  

7.2x-2.5=2+22.2x (x on one side and numbers on other)

22.2x-7.2x= -2-2.5

15x=4.5 divide by 15

x=-4.5/15

<h2>x=-0.3</h2>

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3 years ago
The length of Marshall's poster is 2 times its width. If the perimeter is 72 inches, what is the area of the poster?
lesya [120]
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3 years ago
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BE is a midsegment, Find the value of x. Please
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8 0
2 years ago
. You work at a department store and make $9 per hour plus 12% commission
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5 0
3 years ago
Which function family are these 3? thanks..​
Julli [10]

Answer:

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2) Function; Exponential Function (y=bˣ)

3) Not a function.

Step-by-step explanation:

So, let's go through each table of values. I'm also going to graph them (see attached graphs) because it will make things simpler and provide a visual.

First, also recall what the definition of a function is. A function is a function if and only if an x only has <em>one</em> distinct y-value. No x can have two or more y-values. For instance, (1,2) and (1,3) is <em>not</em> a function between the x repeats. So, let's go through the choices:

1)

We have the table as shown. Let's plot the points. See TABLE 1:

First, there are no repeating x-values, so we can be sure that this is indeed a function.

Looking at the graph, we can see that this resembles a linear graph. So, the parent function of this is a line.

The parent function of a line is:

y=x

So, table 1 is associated with a linear function.

2)

Let's again plot the points. See TABLE 2.

Again, there are no repeating x-values, so this is also a function.

Looking at the graph, this resembles an exponential function. The function increases slowly at first but starts increasing increasingly fast. The parent function is thus an exponential function.

So, table 2 is associated with an exponential function.

3)

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Table 3 is not a function and so has no corresponding family function.

7 0
3 years ago
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