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egoroff_w [7]
2 years ago
5

What multiplies to give you 15 and adds to give you -8?

Mathematics
2 answers:
Nitella [24]2 years ago
7 0

Answer:

The system of equations is:

        x + y = 15

           xy = 15

Step-by-step explanation:

solve the first for y and substitute in the second:

            y = 15-x

      x(15-x) = 15

     15x - x� = 15

15x - x� - 15 = 0

-x� + 15x - 15 = 0

x� - 15x + 15 = 0

kiruha [24]2 years ago
6 0

Answer:

  x + y = 15

          xy = 15

Step-by-step explanation:

           y = 15-x

     x(15-x) = 15

    15x - x ? = 15

15x - x ? - 15 = 0

-x ? + 15x - 15 = 0

x ? - 15x + 15 = 0

Hope you get it right!!

PLEASEEEE GIVE BRAINLIST!!!

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Add the following rational number7/-27 and 11/18
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Answer:

19/54

Step-by-step explanation:

- 7/27 + 11/18

LCM of the 27, 18 is 54

- 7/27 * (2/2) + 11/18 * (3/3)

- 14/54 + 33/54

33 - 14/54

19/54

please mark me brainlist

3 0
2 years ago
Write a formula for a line that passes through the point (x,y) = (-3,5) and has an undefinedslopes.
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A line with undefined slope has an equation  x=a.

So,  for a line that passes through the point (x,y) = (-3,5) ,

has the equation x= - 3.

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Simplest form of 4/10?​
r-ruslan [8.4K]

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The answer is 2/5.

Step-by-step explanation:

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A phone company charges 0.1 per minutes talked and additional $24 for services each month. Write the liner function C(n) where n
ella [17]

Answer:

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6 0
3 years ago
A human gene carries a certain disease from the mother to the child with a probability rate of 34%. That is, there is a 34% chan
fenix001 [56]

Answer:

The probability that at least one of the children get the disease from their mother is 0.7125.

Step-by-step explanation:

We are given that a human gene carries a certain disease from the mother to the child with a probability rate of 34%.

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Let Probability that children get the disease from their mother = P(A) = 0.34

SO, Complement of the event "At least one of the children get the disease from their mother"= P(A') = 1 - P(A)

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                     = 1 - P(X = 0)

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7 0
3 years ago
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