Determine whether the sequence is geometric progression or not. For the geometric progression, find the ninth term and the sum of the first nine terms.


d. Not a GP

Mathematics

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Decide whether or not matrix A and matrix B are inverses.A =  and B = 

A. Yes B. No

Mathematics

Find an equation for the line with the given properties.The solid line L contains the point (5, 4) and is parallel to the dotted line whose equation is  Give the equation for the line L in slope-intercept form.

A. y = 2x + b B. y = 2x - 1 C. y - 4 = 2(x - 5) D. y = 2x - 6

Mathematics

Solve the problem.One pump can drain a pool in 12 minutes. When a second pump is also used, the pool only takes 2 minutes to drain. How long would it take the second pump to drain the pool if it were the only pump in use?

A. 1 min
B.  min
C. 14 min
D. 2 min

Mathematics

Solve the problem.Suppose that the cost, p, of shipping a 3-pound parcel depends on the distance shipped, x, according to the function p(x) depicted in the graph. Is p continuous at  at  at  at 

A. Yes; no; no; no B. Yes; no; yes; no C. No; no; yes; no D. Yes; yes; yes; no

Mathematics