Complete the algebra terms with table and graph given y = 2x +3
1 answer:
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Let the first term be a, 4th term be , difference between terms be d, and sum of first nine terms be
.
= a + 3d
32 = 11 + 3d
3d = 32 - 11
3d = 21
d = 7
=
=
= 9(11+28)
= 9(39)
= 325
Sum of first nine terms is 351.
Answer:
0.2239
Step-by-step explanation:
Given that you have two hats. In one hat are balls numbered 1 through 15. In the other hat are balls numbered 16 through 25. I first choose a hat, then from that hat, I choose 3 balls, without replacing the balls between selections.
Either I or II hat can be selected.
Prob of selecting any one hat = 0.5
After selecting I hat, selecting 3 balls can be done in 15C3 ways and from II hat it can be done in 10C3 ways.
total no of ways of selecting 3 balls = (10+15)C3 = 2300
Probability required