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Naddik [55]
3 years ago
15

Which are the solution of x2 =-5x +8

Mathematics
1 answer:
Salsk061 [2.6K]3 years ago
6 0

Answer:

x=6/5 or 1.2

Step-by-step explanation:

I could not tell if your original problem was 2=-5x+8 or if it should have been 2x=-5x+8 so I solved both

2= -5x+8 (next subtract 8 from both sides)

-6= -5x (divide both sides by -5)

-6/-5=x (the negative cancel out next)

6/5 or 1.20 is x

If your original problem should say 2x=-5x+8

2x=-5x+8 (add 5x to both sides next)

7x=8 (divide by 7 on both sides)

x=8/7

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1/4z-2/7=5/7 what is z
Alenkasestr [34]

Answer:

z=4

Step-by-step explanation:

1/4z-2/7=5/7

1/4z= 5/7+2/7

1/4z=1

z=4

3 0
3 years ago
Can somebody give an example of how to identify a polynomial
Nikitich [7]
It has to obey all the polynomial rules, like 3x^4 or 6x, it has to have the base then the power.
4 0
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What’s the right answer
ruslelena [56]

Answer:

false

Step-by-step explanation:

7 0
3 years ago
The figure shows square KLMN. Which of the following conditions satisfy the criteria for squares?
BartSMP [9]

Answer:

First option: SquareKLMN with diagonals LN and KM.

Fifth option: Segment LMis parallel to segment KN.

Step-by-step explanation:

We know that a square is quadriteral whose sides are equal.

By definition, a square has the following properties:

1) Its four sides are congruent.

2) The diagonals are congruent.

3) The angles formed by the intersection of the diagonals measure 90 degrees.

4) The opposite sides are parallel.

5) Each internal angle measures 90 degrees.

Notice in the figure that:

  • The diagonals of the square  KLMN are: LN and KM.

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7 0
3 years ago
Read 2 more answers
Solve.<br><br> The answer must be a fraction. Solve by substituting.
maw [93]

Answer: x = -14/5

Step-by-step explanation: We shall begin by expanding the brackets for both sides of the equation

-2/3 (x + 2) = 1/6 (x + 6)

(-2x/3) -4/3 = (x/6) + 1

By collecting like terms we now have

(-2x/3) - (x/6) = 1 + 4/3

(-4x - x)/6 = 7/3

-5x/6 = 7/3

By cross multiplication we now have

-5x (3) = 7 (6)

-15x = 42

x = -(42/15) {simplify further by dividing the RHS by 3}

x = -14/5

Therefore x equals, minus fourteen over five (-14/5)

4 0
3 years ago
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