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Daniel [21]
3 years ago
15

Solve for y. y y —— = —— P-9 P+9

Mathematics
1 answer:
Veronika [31]3 years ago
5 0

9514 1404 393

Answer:

  y = 0

Step-by-step explanation:

Subtracting the right side gives ...

  \dfrac{y}{P-9}-\dfrac{y}{P+9}=0\\\\y\left(\dfrac{(P+9)-(P-9)}{P^2-81}\right)=0\\\\y\left(\dfrac{18}{P^2-81}\right)=0\\\\\boxed{y=0}

The factor multiplying y cannot be zero, so y must be zero.

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Answer:

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Step-by-step explanation:

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The combined area is 72 sq. ft.
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Form the quadratic equation whose one root is 2 + 2^(1/2)​
Oksanka [162]

9514 1404 393

Answer:

  x^2 -4x +2 = 0

Step-by-step explanation:

The other root is the conjugate of the given one, so is 2-√2. The quadratic equation in factored form is then ...

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Expanding this, we get ...

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4 0
3 years ago
The equation a = 1300(1.02)7 is being used to calculate the amount of money in a savings account. what does 1.02 represent in th
yaroslaw [1]
For this case we have an equation of the form:
 y = A * (b) ^ t
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Which pair shows equivalent expressions?
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