Answer:
(A)(12, 9)
Step-by-step explanation:
Given:
The beginning of the left edge of the stencil falls at (2, −1).
A point, say Q on the stencil is at (4, 1).
Point Q divides the stencil into the ratio 1:4.
We are required to find the end of the stencil.
Mathematically, Point Q divides the stencil internally in the ratio 1:4.
For internal division of a line with beginning point and end point in the ratio m:n, we use the formula
, , Q(x,y)=(4,1), m:n=1:4
Therefore:
The correct option is A.
Answer:
the answer is - 133
Step-by-step explanation:
Answer: x = 16
Step-by-step explanation:
2(x - 6 ) = 20 Apply the distributive property
2x - 12 = 20 Add the 12 to both sides
+12 +12
2x = 32 Divide both sides by 2
x = 16
Answer:
And using the cumulative distribution function we got:
The probability that preparation is within 2 minutes of the mean time is 0.134
Step-by-step explanation:
For this case we define the following random variable X= (minutes) for a lab assistant to prepare the equipment for a certain experiment , and the distribution for X is given by:
The cumulative distribution function is given by:
The expected value is given by:
And we want to find the following probability:
And we can find this probability on this way:
And using the cumulative distribution function we got:
The probability that preparation is within 2 minutes of the mean time is 0.134
Answer: m = kn/p3 = k*2/1 --> k = 3/2m = 3n / 2p
Step-by-step explanation: