Answer:

Step-by-step explanation:
We are given equation of parabola as

we can also write as

now, we can compare

and find a , h , and k
a=1
h=0
k=0
now, we can use focus formula

now, we can plug values


Answer:
Profit = 935
Step-by-step explanation:
Purchase price: 500×1.28=640
Selling price: 500×3.15=1575
Profit: selling price - purchase price = profit
1575 - 640 = 935
Profit = 935
I'm not sure you are asking the right question? it tells you what the radius is right there. What is the question asking
Answer:
12 - 4i
Step-by-step explanation:
-2i ( 2+6i)
Distribute
-2i * 2 + -2i *6i
-4i - 12 i^2
We know that i^2 = -1 so replace it
-4i - 12(-1)
-4i + 12
Then put in the order a+bi where the real number comes first and the imaginary number comes last
12 - 4i
answer
c.)
Step-by-step explanation:
(-2x)^4 = -2x^4
which is the same as answer c.)