The term in the expansion:
T ( k+1) = n C k * A^(n-k) * B^k.
In this case: n = 11, k + 1 = 8, so k = 7.
A = x, B = - 3 y
T 8 = 11 C 7 * x^(11-7) * ( - 3 y )^7 =
=( 11 *10 * 9 * 8 * 7 * 6 * 5 ) / ( 7 * 6 * 5 * 4 * 3 * 2 * 1 )* x^4 * ( - 2,187 y^7 ) =
= 330 * ( - 2,187 ) x^4 y^7 = - 721,710 x^4 y^7
Answer: The 8th term in expansion is
Answer:
3
Step-by-step explanation:
Answer:
0.71875
Step-by-step explanation:
Probability that a person thinks of himself as Democrat = P(A)= 0.32
Probability that a person agress that the govt. in Washington should do everything possible to improve the standard of living of poor= P(B)
Probability that a Democrat agress that the govt. in Washington should do everything possible to improve the standard of living of poor P(A ∩ B) = 0.23
P(B/A) = P(B∩A)/ P(A)
P(B/A)= 0.23/0.32
P(B/A) = 0.71875
Answer:
1/2
Step-by-step explanation:
Answer:
Step-by-step explanation:
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