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Anestetic [448]
3 years ago
7

7(x+2)=2x-1 solve for the variable

Mathematics
1 answer:
Len [333]3 years ago
7 0

Answer:

x = - 3

Step-by-step explanation:

Given

7(x + 2) = 2x - 1 ← distribute parenthesis on left side

7x + 14 = 2x - 1 ( subtract 2x from both sides )

5x + 14 = - 1 ( subtract 14 from both sides )

5x = - 15 ( divide both sides by 5 )

x = - 3

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A box has a volume given by the trinomial x^3+4x^2-5x. What are possible dimensions of the box? Use factoring.
cricket20 [7]
Answer: The correct answer is Choice B.

To factor this expression, we should first factor out the variable x.

We will have:
x(x^2 + 4x - 5)

Now, all we have to do is factor x^2 + 4x - 5.

The factors of this are (x + 5)(x - 1).

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3 years ago
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tia_tia [17]

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4 0
2 years ago
Which stem-and-leaf plot represents the data 80, 81, 91, 92, 66, 55, 54, 30, 55, 79, 78?
const2013 [10]
Convert the given data into ascending order.
30,54,55,55,66,78,79,80,81,91,92
Here the minimum value is 30 and maximum is 92.
Total counts=11
Now plot the data.

Stem | Leaf
3       |  0
5       | 4 5 5
6       | 6
7       | 8 9 
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This is the required stem leaf plot.
3 0
2 years ago
Read 2 more answers
Find the surface area of the square pyramid shown below.<br><br> (15 points)
harkovskaia [24]

Answer:

340

Step-by-step explanation

Base=10x10=100

Sides= {(12x10)/2}x4=240

Add sides plus base, 240+100=340

7 0
2 years ago
M is the midpoint of LN. What is the measure of LM?
alexandr1967 [171]

Answer:

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LM = 3x = 3(2) = 6

So; LM = 6

I hope I helped you^_^

6 0
3 years ago
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