Answer: d. random variable.
Step-by-step explanation:
A random variable is a numerical description of outcomes of an experiment, it can be used to represent the possible values of a past experiment or yet-to-be-performed experiments. It is a variable whose values depends on outcome of a random occurrence. Random variables also allows the calculation of probability of an occurrence or result in a particular experiment.
Step-by-step explanation:
Infinitely many solutions are there....
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Step-by-step explanation:
x² + 12x = -35
x² + 12x + 35 = 0
(x + 5) (x + 7) = 0
x = -5 or -7
Answer:
0.99
Step-by-step explanation:
Given,
Pink gumballs = 3,
Red gumballs = 4,
Green gumballs = 2,
So, total gumballs = 3 + 4 + 2 = 9,
Thus, total ways of selecting 5 gumball = 




Also, the total ways of selecting no red gumballs = 
= 1 × 1
= 1
So, the probability of no red gumballs in 5 drawn

Hence, the probability that a red gumball is drawn if there are 5 drawings
= 1 - probability of no red gumballs


≈ 0.99
The diameter is 24 since if you ÷ it by 2 you get 12 to get area it is radius squared so 12 × 12= 144×pi which is 3.14= 452.16 mm you can even check in a calculator