What is the probability that a fair die never comes up an even number when it is rolled six times?

1 answer:

4 0

Each time you roll a die there is a chance out of 6 because there are 6 faces. Therefore because you rolled it 6 times
6 x 6 = 36
So it's out of 36
3 even numbers on a die
3 x 6 = 18
Your answer is:
18/36
Which can be simplified to:
1/2

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Give the center, radius, and equation of the circle in the graph.

dexar [7]

Answer:

$(x-2)^2+(y+3)^2=4$

Step-by-step explanation:

A circle's equation consist on the following expression: $(x-a)^2+(y-b)^2=r^2$ , where r is the magnitude of the radio, and (a,b) are the coordenates of the center of the circle.
In this case, a=2 and b= - 3, because the circle is centered in (x,y)=(2, - 3).
The radio, which is the distance between the center of the radio to any point in its border, equals r=2 (because of the scale of the graphic, in this case two squares of the grid equal 2 units, then r=2).
Finally, using the previous information to replace in the equation $(x-2)^2+(y+3)^2=4$ , where the fact that r=2 and $2^2=4$ was used.