Write the explicit formula for the geometric sequence. 64, 32, 16, 8, a) an = 8 · 4n-1 b) an = 8 · 2n-1 c) an = 32 · 0.5n-1 d) an = 64 · 0.5n-1 which answer?

The random variable x represents the number of phone calls an author receives in a day, and it has a poisson distribution with a mean of 8.7 calls. what are the possible values of x

Aboard 60 in. long is cut two parts so that the longer piece is 5 times the shorter. what are the length of the two pieces?

The approximate line of best fit for the given data points, y = −2x − 2, is shown on the graph. which is the residual value when x = –2? a)–2 b)–1 c)1 d)2