Answer:
y = 11.5
Step-by-step explanation:
Given 2 secants from an external point to the circle.
Then the product of the external part and the whole of one secant is equal to the product of the external part and the whole of the other secant, that is
6(6 + y) = 5(5 + 16)
36 + 6y = 5 × 21 = 105 ( subtract 36 from both sides )
6y = 69 ( divide both parts by 6 )
y = 11.5
Answer:
P=0.05 or 5%
Step-by-step explanation:
The formula to calculate the probability in a continuous uniform distribution is:
Where a is the lower value of the limits of the distribution (a=47.0), b is the upper value of the limit of the distribution (b=57.0), c It is the lowest value in the range from which probability is calculated (c=50.75) and d It is the highest value in the range from which probability is calculated (d=51.25).
(2.5*10^-8)(9*10^-10)
First, distribute a 1 so you can get rid of parentheses
2.5*10^-8*9*10^-10
Now, combine like terms
(2.5*9) (10^-8*10^-10)
2.25*10^-18