The vertex of the parabola is between the shortest line connecting its focus and directrix, so between (0, -4) and y = 4 is the point (0, 0), which is the vertex of the parabola. Also, this parabola faces downward.
The general formula for a parabola that faces downward is y = -4cx^2, where c is the distance from the vertex to either to focus or the parabola. Since c = 4, the equation is y = -16x^2, which is choice A.
20/60 = 10/x
Cross multiply 10 with 60
600
Divide by 20
30.
It will take 30 minutes.
Answer:
A repeating decimal...
Step-by-step explanation:
Because the numbers after the decimal points keep repeating.
The answer is A 24$ because 30x40 is 1200 and 1200x 0.02 is 24
I assume you meant to write 5^c = 125. The equivalent logarithmic expression for this would be ㏒₅125=c.
