The probability of picking a red marble three times in a row with replacement is:
number of red marbles divided by total number of marbles cubed...
(6/10)^3=27/125
The above is the theoretical probability...
From the chart we see that three reds in a row happened twice in twenty-five trials so the experimental probability is:
2/25
The experimental probability about 0.14 less than theoretically expected...
C)
Answer:
the first one
Step-by-step explanation:
Think of it this way. If it needs to be greater than -11, that means there is some kind of restraint. that would be in this situation, its under a square root. if you plug in -11, it should equal 0, so it has to be x+11 under square root. The second one wouldn't work since that would make it square root of -22 and thats imaginary, same thing with all the others, when you plug in -11, the last 3 would come negative. the first one is the only one that cancels the negative and gives you 0
Answer:
b
Step-by-step explanation:
its a negative slope, so you can eliminate c and d. even though the scale is 2, the slope always pertains to $1 increase and not $2 increase.
Answer:
9 sq cm
Step-by-step explanation:
If you join the two triangles it will become a square of side 3cm.
3cm * 3cm = 9cm squared.
Hope you have a nice day :)
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