<span>its C. Alan has 13 CDs, Tom has 16 CDs, Barbara has 23 CDs !</span>
Answer:
x = 1/20 y^2
Step-by-step explanation:
This is a rightward opening (sideways ) parabola
Directrix = x = -5
Distance formula form point x,y to directrix and focus are equal:
(x - -5)^2 = (x-5)^2 + y^2
x^2 + 10x + 25 = x^2 - 10x + 25 + y^2
20x = y^2
x = 1/20 y^2
25/3 pages of a book in 10 minutes
Multiply both numbers by the reciprocal of 10, which is 1/10
So, Charlotte reads
5/6 pages of a book in 1 minute.
Answer:
B a = 180 -77-60
Step-by-step explanation:
The angles add to 180 degrees since they form a straight line
77+ 60+a = 180
a = 180 -77-60
