Answer:
Step-by-step explanation:
The surface area of an equilateral triangular pyramid is given as:
where
is the area of the pyramid's base
b = length of the base of one of the faces = 28 in
h = face height 23 in
The area of the base of the pyramid will be:
Hence:
The surface area of the pyramid is
Answer:
2x^3 + 4x^2 -x -2
Step-by-step explanation:
(X+2)(2x^2-1) =
2x^3 -x + 4x^2 -2 =
2x^3 + 4x^2 -x -2
Answer:
5.94$
Step-by-step explanation:
23.75/4 = 5.94
Answer:
0.00665
0.006951
Step-by-step explanation:
If the first child is born with the affliction, there's a 0.05 probability that the second child will be born with the affliction. Which means there's a 0.95 probability that they won't.
The probability that the first child is born with the affliction but not the second is therefore:
P = 0.007 × 0.95
P = 0.00665
There's a 0.007 probability that the first child will be born with the affliction, which means there's a 0.993 probability that they won't. If the first child isn't born with the affliction, then the probability the second child will have it is 0.007.
So the probability that the first child is not born with the affliction and the second child is would be:
P = 0.993 × 0.007
P = 0.006951