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ZanzabumX [31]
4 years ago
15

3x+1=8x-24 helpppppppp

Mathematics
2 answers:
Grace [21]4 years ago
5 0

Hello there again! :) :D

Answer:

\boxed{X=5}

<u><em>*The answer must have A POSITIVE SIGN ONLY!*</em></u>

Step-by-step explanation:

First, you subtract by 1 from both sides of an equation.

3x+1-1=8x-24-1

Add/Subtract by the numbers from left/right.

24+1=25

3x=8x-25

Then, you subtract by 8x from both sides of an equation.

3x-8x=8x-25-8x

Simplify equation.

-5x=-25

Divide by -5 from both sides of an equation.

\frac{-5x}{-5}=\frac{-25}{-5}

Divide by the numbers from left/right.

-25/-5=5

Final answer is → \boxed{X=5}

<em>Hope this helps you!</em>

<em>Have a nice day! :)</em>

<em>:D</em>

<em>-Charlie</em>

<em>Thank you! :)</em>

Irina18 [472]4 years ago
4 0

3x+1 =8x -24

3x -8x +1 = -24

-5x +1 = -24

-5x = -24 -1

-5x = -25

x = -25/-5 = 5

x = 5

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Chords AB and CD intersect at point E, AE = 10, EB = 4, and CE = 8. Therefore, ED =
Genrish500 [490]
So here is how we are going to find out what is ED. 
Based on the given figure, it states that, AE is 10, and EB is 4 and CE is 8.
So, <span>(AE/CE)=(ED/EB)
10/8 = ED/4 <<multiply both sides by the common denominator which is 8 and the result would be:
80/8 = 8ED/4
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ED = 5.
Therefore, the measurement of ED is 5. 
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5 0
4 years ago
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What is this statement Segment AB is congruent to segment AB.
Feliz [49]

Answer:

reflective

Step-by-step explanation:

This statement shows the reflective property.

6 0
4 years ago
What is the sum of (4x² + x - 4) and (2x2 - 6x + 2)?
WINSTONCH [101]

Answer:6x^{2} +3x-1

Step-by-step explanation:

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3 years ago
Which of the following choices is the standard deviation of the sample shown
lana66690 [7]

Answer:  E. square root of 2

We can write that in shorthand as sqrt(2)

sqrt(2) = 1.41421 approximately

======================================================

Explanation:

Step 1)

Add up the values to get 18+19+20+21+22 = 100

Divide by n = 5, since there are 5 items in the list. So 100/n = 100/5 = 20

The sample mean is xbar = 20

--------------

Step 2)

Subtract the mean from each data value

  • 18 - xbar = 18 - 20 = -2
  • 19 - xbar = 19 - 20 = -1
  • 20 - xbar = 20 - 20 = 0
  • 21 - xbar = 21 - 20 = 1
  • 22 - xbar = 22 - 20 = 2

The results we get are: -2, -1, 0, 1, 2

---------------

Step 3)

Square the results from the previous step

  • (-2)^2 = 4
  • (-1)^2 = 1
  • (0)^2 = 0
  • (1)^2 = 1
  • (2)^2 = 4

The results here are: 4, 1, 0, 1, 4

---------------

Step 4)

Add up those squares from the previous step: 4+1+0+1+4 = 10

Now divide by n = 5 to get 10/n = 10/5 = 2

The result 2 represents the population variance. Applying the square root to the population variance leads to the population standard deviation. So we end up with the final answer of sqrt(2). The answer is choice E.

sqrt(2) = 1.41421 approximately

---------------

Note: if you want the sample standard deviation, then you divide by n-1 = 5-1 = 4, but the other steps are the same as before.

7 0
3 years ago
Find the minimum value of the function for the polygonal convex set determined by the given system of inequalities.
lutik1710 [3]

Answer:

Option b (4,1)

Step-by-step explanation:

The region given by the system of inequalities is shown in the graph. We must look within this region for the point that minimizes the objective function f(x, y) = 8x + 8y

The minimum points are found in the lower vertices of the region.

These vertices are found by equating the equations of the lines::

3x+2y=14\\-5x +5y=10

-------------------

x = 2\\y = 4

-8x + 3y = -29\\3x + 2y = 14

---------------------

x = 4\\y = 1

The lower vertices are:

(4, 1) (2, 4)

Now we substitute both points in the objective function to see which of them we get the lowest value of f(x, y)

f(4, 1) = 8(4) +8(1) = 40\\f(2, 4) = 8(2) + 8(4) = 48

Then the value that minimizes f(x, y) is (4,1).

Option b

5 0
3 years ago
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