Solve by the linear combination method (with or without multiplication). 6x + 7y = –4 5x – 3y = –21 a.(3, –1) b.(1, 7) c.(–3, 2) d.(–1, 3)

What is the 9th term in the geometric sequence described by this explicit formula? an=-6. (2)(n-1) apex

Given a binomial distribution variable with n=20 and p=0.60 find the following possibilities using the binomial table a) p(x < 13) b) p x > 15) c) p(x = 17) d) p(11 < x < 14) e) p(11 < x < 14)

Twice the sum of a number and 2 is equal to three times the difference of the number and 8. find the number.