Since Q and R are independent, this means P(Q and R) = P(Q)*P(R)
<span>P(Q and R) = P(Q)*P(R)
</span><span>P(Q and R) = (4/5)*(4/11)
</span><span>P(Q and R) = (4*4)/(5*11)
</span>P(Q and R) = 16/55
Answer: 39
Step-by-step explanation: All the numbers in organized order: 30, 32, 32, 36, 42, 43, 44, 45. The median is basically the middle of the numbers, and since we have 8 numbers, the middle of the eight numbers is 36, and 42. Now we add those 2 middle numbers together, and divide them by 2 so we can find the median of those 2 middle numbers. (36+42)/2 is equal to 39, so the final answer is 39.
Answer:
will make the equation true
Step-by-step explanation:
Given


Required
Which is true for x
We have:

Collect like terms


Solve for x


Subtract 2n from -10n to get -12n
-12n
SV middle line of trapezoid, so

Answer: QR=18