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Elena L [17]
2 years ago
12

Need help solving this problem ​

Mathematics
1 answer:
natka813 [3]2 years ago
3 0

Answer:

Part 1: \frac{11-x}{5} or \frac{11}{5}-\frac{x}{5}

Part 2: \frac{9}{5}

Step-by-step explanation:

To start things off, you must put everything on the opposite side of y so that you only have the y variable left.

In this case, put x onto the other side, making it negative since it's flipped, so you get 5y=11-x (since the x is negative you're using subtraction from 11).

Next, divide both sides by 5 to make 5y into y:

\frac{5y}{5} =\frac{11}{5}-\frac{x}{5}

y=\frac{11}{5}-\frac{x}{5}

Then in this case you turn y=f(x), but the system did it for you, so all you have to put is \frac{11}{5}-\frac{x}{5}.

For the second part you must replace x with 2 since you need to find f(2).

\frac{11-2}{5}

Your answer for part 2 is \frac{9}{5}.

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The model represents the equation <br> 4x+ 4 = 12<br> What value of x makes the equation true
myrzilka [38]

Answer:

B

Step-by-step explanation:

All you have to basically do on this one is go backwards.

The beginning equation is 4x+4=12, so to first revesre the adding we are going to use 12, the product, and subtract 4 from it (since that is what was added).

12-4=8

Now you need to reverse the times 4, so to do that just divide instead because that is the invese of multiplication.

8/4=2

Now you have 2, which is the variable, x. To make sure this is right you can just put it into the equation and see if 4x2+4 is 12

Hope this helped!

6 0
2 years ago
Which expression is equivalent to the one below?
Alex17521 [72]

Answer:

D . 9 .1/13

Step-by-step explanation:

9\div 13 = \frac{9}{13} \\\\9\cdot \frac{1}{13}\\\\=\frac{9}{1}\cdot \frac{1}{13}\\\\=\frac{9\cdot \:1}{1\cdot \:13}\\\\=\frac{9}{13}

4 0
3 years ago
Solve each equation check your solution<br> 49=-7(t+1)
enyata [817]
49 = -7 (t + 1)
49 = -7t + 7
-7 -7
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t = -7
5 0
3 years ago
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In a given binomial distribution, there are 625 trials, and the probability of success is p =0.29. What is the variance?
Shkiper50 [21]

Answer:

128.69.

Step-by-step explanation:

The variance is np(1 - p)

= 625*(0.28) * 0.71

= 128.69.

3 0
3 years ago
Which figure correctly demonstrates using a straight line to determine that the graphed equation is not a function of x? HELP PL
Nadya [2.5K]

Answer:

Lower left.

Step-by-step explanation:

To determine if a graph is a function the "vertical line test is used.  If any point on a graph has one x value go to two y values it is not a function.  

Witht he four pictures, the two on the right use a horizontal line, so it doesn't tell at all, on the leftthe upper one is vertical but it doesn't show that one x value has two corresponding y values.  So it must be the lower left one.

The lower left picture has a line at x=1, and it passes through the line of the graph at two different y values, 4 and -4.  So this has two y values with one x value.

8 0
3 years ago
Read 2 more answers
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