Kate has a coin collection,She keeps 7 of the coins ln a box .Which is only 5% of her entire collection,What is the total number
1 answer:
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Answer:
first answer is correct
Step-by-step explanation:
Hello, we want to write 2 + 4 + 6 + ... + 20
for n = 1, 2n = 2*1 =2
for n = 2, 2n = 2*2=4
for n = 3, 2n=2*3=6
etc
so
thanks
Answer:
Step-by-step explanation:
we are given a quadratic equation
we know that quadratic equation is same as equation of parabola
so, we can use formula
Focus is
now, we can compare it with given focus
=(8,-8)
we get
Directrix is
we are given directrix =-6
we got two equations as
now, we can add both equations
and we get
now, we can find 'a'
now, we can plug back all values
and we get
So, equation of parabola is