Answer: Assume c = 0
Step-by-step explanation:
Step-by-step explanation:
Assume c = 0
Using the formula for the x-coordinate of the vertex, b can be calculated in terms of a:
B can then be substituted into the quadratic equation, along with the coordinates of the vertex, to solve a:
AND
Substituting into the quadratic equation:
Because a is negative, the parabola opens up.
Answer:
thx
Step-by-step explanation:
:D:D:D
Answer:
2625 pounds of leaves
Step-by-step explanation:
First, multiply 75 pounds by 7 days, AKA 75 pounds x Week
The answer to that is 525 pounds in a week.
The question asks to find how many pounds of leaves 5 giraffes can eat in a week.
So multiply 525 pounds by 5 giraffes, and you get 2625 pounds of leaves.
We know that C is 385, so we can plug that in to get the equation 385=15n+85. To find the number of watches, we have to solve for n.
To do that we have to...
385=15n+85
First subtract both sides of the equal sign by 85 (because we need to do the opposite)
300=15n (because 85-85 is zero, so we eliminated that, and 385-85 is 300)
Now we divide both sides of the equal sign by 15 (again, opposites)
20=n (because 15n/15 leaves us with n since both 15s cancel out, and 300/15 is 20)
So the number of watches made were 20.
