Answer:
Step-by-step explanation:
With replacement of the first ball
P(first ball is red and the second is green) =7/19 * 9/19= 63/361=.175
without replacement (14 total balls in the urn on the second draw)
P(first ball is red and the second is green) =7/18 * 9/18= 63/324=.194
Answer:
tam 20 = 4 / x
x = 4 /tan 20 = 4 / .364 = 10.99
Answer:
-1/2
Step-by-step explanation:
(y2-y1)/
(x2-x1) (-2-2)/(3-(-5))
The appropriate choice is ...
C) -x^3 + x^2 - 1
Answer:
The volume of the cone is;
100 π inches^3
Step-by-step explanation:
To calculate the volume, we need the height
We can get the height from the slant height and the radius
Mathematically, we use Pythagoras’ theorem for this as the slant height, the radius and the height forms a right-angled triangle
The right-angled triangle has the slant height as its hypotenuse
By the theorem, the square of the hypotenuse equals the sum of the squares of the two other sides
Let the height be h
Thus;
12^2 = 5^2 + h^2
169= 25 + h^2
h^2 = 169-25
h^2 = 144
h = √1144 inches = 12 inches
The volume of the cone is;
1/3 * π * r^2 * h
= 1/3 * π * 5^2 * 12
= 100 π inches^3
