Answer:
$0.0646 is the expected value of the draw.
Step-by-step explanation:
1 nickel = 5 cents
1 dime = 10 cents
1 penny = 1 cent
Total number of coins = 
Probability that a nickel is selected is = 14/35
Probability that a dime is selected is = 15/35
Probability that a penny is selected is = 6/35
So, the expected value of the draw will be =
= 6.457 cents ≈6.46 cents
So, in dollars it is = 
= $0.0646
So, $0.0646 is the expected value of the draw.
It's trivial..
1. B
2. C
3. E
4. D
5. A
AyE AyE CapTaiN!! HOOOOOOOOOOOO WHO LIVES IN A PINEAPPLE UNDER THE SEAAA! SPONGEBOB SQUAREPANTS!
Because the focus is (-2,-2) and the directrix is y = -4, the vertex is (-2,-3).
Consider an arbitrary point (x,y) on the parabola.
The square of the distance between the focus and P is
(y+2)² + (x+2)²
The square of the distance from the point to the directrix is
(y+4)²
Therefore
(y+4)² = (y+2)² + (x+2)²
y² + 8y + 16 = y² + 4y + 4 + (x+2)²
4y = (x+2)² - 12
y = (1/4)(x+2)² - 3
Answer:
Volume = 3.14xradius squared x height so it’s 3.14 x 6x6 x8 = 904.32
