Answer: 
Step-by-step explanation:
It is important to remember that, by definition, proportional relationships have the following form:

Where "k" is the constant of proportionality.
We know that Maddy assume that the relation between the volume and the weight is proportional.
Then, let be "V" the volume in liters and "w" the weight in kilograms.
We can write the following equation:
So, if the boat of 555 liters weights 7.5 kilograms, we can find "k":

In order to solve the exercise, substitute the value of "k" and
into the equation and solve for "w". Then:
Answer:
-8x^2-10x+12
Step-by-step explanation:
first set up the problem:
(-3x^2-7x+5)-(5x^2+3x-7)
Since you are subtracting you need to distribute the (-) sign:
(-3x^2‐7x+5)(-5x^2-3x+7)
Now just combine like terms
-3x^2+(-5x^2= -8x^2
(-7x+(-3x= -10x
5+7= 12
set answer in standard form:
-8x^2-10x+12
Answer:
I Can help you! what do y need help on?
Step-by-step explanation:
Answer:
Formula: (x, -y), when reflecting over the x-axis you keep the x-value the same, but change the sign of the y-value. For example: You have the original coordinates (3, 5), and if you reflect it over the x-axis it’ll be (3, -5).
Answer:
There is no x the equation so there is really no answer for x
Step-by-step explanation: