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valkas [14]
2 years ago
9

Solve for x: 5x + 15 = 28​

Mathematics
1 answer:
koban [17]2 years ago
8 0

Answer:

x=\frac{13}{5}

Step-by-step explanation:

In order to get the answer to this question you need to subtract and divide on both sides.

5x + 15 = 28

Minus 15 on both sides:

28-15=13

5x=13

Divide 5 on both sides:

13\div5=\frac{13}{5}

x=\frac{13}{5}

Hope this helps.

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What is the Simplified form of √46/192
Lorico [155]

Answer:

  (√138)/24

Step-by-step explanation:

\displaystyle\sqrt{\frac{46}{192}}=\sqrt{\frac{46\cdot 3}{192\cdot 3}}=\sqrt{\frac{138}{24^2}}=\frac{\sqrt{138}}{24}

8 0
3 years ago
Two separate linear functions are expressed by the graph and by the equation. Select all that apply.
Andre45 [30]

Answer:

First option: The slope is negative for both functions.

Fourth option: The graph and the equation expressed are equivalent functions.

Step-by-step explanation:

<h3> The missing graph is attached.</h3><h3> </h3>

The equation of the line in Slope-Intercept form is:

y=mx+b

Where "m" is the slope and "b" is the y-intercept.

Given the equation:

y=-4x-4

We can identify that:

m=-4\\b=-4

Notice that the slope is negative.

 We can observe in the graph that y-intercept of the other linear function is:

b=-4

Then, we can substitute this y-intercept and the coordinates of a point on that line, into y=mx+b and solve for "m".

Choosing the point (-2,4), we get:

4=m(-2)-4\\\\4+4=-2m\\\\m=-4

Notice that the slope is negative.

Therefore, since the lines have the same slope and the same y-intercept, we can conclude that they are equivalent.

4 0
3 years ago
Read 2 more answers
3. A rectangular sheet of paper is folded diagonally from A to C. What is the length of side BD?
Kipish [7]
If AD is a diagonal and the length is 24 BD is given by Pythagoras √26²-24²=√676-576=√100=10 answer A.
7 0
3 years ago
PLEASE HELP!!!! <br> 100 ÷ 25 • 20 + 4 ÷ 2 – 14
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The answer is 38

Hope this helps : )

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3 years ago
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David wants to hang a mirror in his room. The mirror and frame must have an area of 8 square feet. The mirror is 2 feet wide and
Agata [3.3K]
The correct quadratic equation;
x2+7x-2=0

Working
Assuming the frame has a uniform thickness;
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8=(6+5x+x2)
Taking 8 to the Right hand side, we have:
x2+5x-2 =0 
4 0
3 years ago
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