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VMariaS [17]
3 years ago
6

-2x+x=143 solve for x

Mathematics
2 answers:
Alla [95]3 years ago
3 0
Combine like terms so combine -2x and x which gives you x=143
r-ruslan [8.4K]3 years ago
3 0
Answer: -143

To find the answer follow these steps:
1: Add x to -2x (to isolate the variable, x), this will get you -x=143
2: Now to get x positive simply switch the negative from the x (left) to 143 (right). You will get x= -143.

Hope this helps!
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Answer:

140

Step-by-step explanation:

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3 0
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suppose a parabola has an axis of symmetry at x = -8, a maximum height of 2, and passes through the point (-7, -1). Write the eq
lesya [120]

Answer:

<h3>            f(x) = - 3(x + 8)² + 2</h3>

Step-by-step explanation:

f(x) = a(x - h)² + k   - the vertex form of the quadratic function with vertex    (h, k)

the<u> axis of symmetry</u> at<u> x = -8</u> means h = -8

the <u>maximum height of 2</u> means  k = 2

So:

f(x) = a(x - (-8))² + 2

f(x) = a(x + 8)² + 2   - the vertex form of the quadratic function with vertex   (-8, 2)

The parabola passing through the point (-7, -1) means that if x = -7 then        f(x) = -1

so:

    -1 = a(-7 + 8)² + 2

 -1 -2 = a(1)² + 2 -2

      -3 = a

Threfore:

The vertex form of the parabola which has an axis of symmetry at x = -8, a maximum height of 2, and passes through the point (-7, -1) is:

                                 <u>f(x) = -3(x + 8)² + 2</u>

8 0
3 years ago
What is 40% of 60????
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Answer:

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First problem:

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Second problem:

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Look at the picture.

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