if there are 5 dogs in the apartment complex, there are 25 cats there
I’m assuming a. Or 26 since it’s the only number within the range
Differentiate implicitly using the power rule:
<span>12x^2 + 15y^2y' = 0 </span>
<span>Make y' the subject: </span>
<span>15y^2y' = -12x^2 </span>
<span>y' = -(4x^2) / 3y^2 </span>
<span>Differentiate again using the quotient rule: </span>
<span>y'' = [-8x(3y^2) - 6yy'(-4x^2)] / 9y^4 </span>
<span>y'' = (-24xy^2 + 24x^2yy') / 9y^4 </span>
<span>Simplify: </span>
<span>y'' = (-8xy + 8x^2y') / 3y^3 </span>
<span>Substitute (4x^2) / 3y^2 back for y': </span>
<span>y'' = (-8xy + 8x^2 * 4x^2 / 3y^2) / 3y^3 </span>
<span>y'' = (-24xy^3 + 32x^4) / 9y^5</span>
Im not sure but i think its 3 months! sorry if im not correct
Answer:
a. y=-2x
Step-by-step explanation:
The equation of a direct proportion is of the form
where k is the constant of proportionality.
From the given options, the only equation that is of the form,
is
.
In this case
is the constant of proportionality.
Therefore the correct option is A.