Answer:
The area is given by:
And replacing we got:
So then we can conclude that the area of the coin is 
mm^2
Step-by-step explanation:
For this case we know that we have a coin with a diamter of 
, and by definition the radius is given by:
The area is given by:
And replacing we got:
So then we can conclude that the area of the coin is mm^2
Answer:
30 cups/second
Step-by-step explanation:
620 gallons = 9,920 cups
5.5 minutes = 330 seconds
9,920/330 = ~30
The number of defective modems in the inventory is 20%⋅ 30 + 8%⋅ 50 = 10 (out of 80).
Note that the number of defectives in the inventory is fixed, i.e., we are not told that there
is 1
8 probability that a modem in the inventory is defective, but rather that exactly 1
8
of
all modems are defective. The probability that exactly two modems in a random sample
of five are defective is = 0.102
132 boys to 89 girls to 14 adults
Answer:
x = 
Step-by-step explanation:
1. Move everything to one side of the equation.
x^2 - 19x - 1 = 0
2. Use the quadratic formula where a = 1, b = -19, and c = -1.
x = (-b +- sqrt(b^2-4ac)) / 2a
If you plug those numbers into that formula, you will get the result listed above
