For the following geometric sequence, find the explicit formula. {1, - 3, 9, ... } an = - 3 · an - 1 where a1 = 1 an = - 3 · an - 1 where a1 = - 1 an = - 1 · (-3) n - 1 an = (-3) n - 1

Subtract. (7x2 + 6) - (2x-5)

Emily needs 5 cups of milk to make a vanilla milkshake should she buy a pint a quart or a gallon of milk explain the answer

A newspaper article reports the results of an election between two candidates the article says that Smith received 60% of the votes and that Murphy received 1/3 of the boats I read her rights and complain that the article can not be accurate what

Write the equation of the line: Passing through (-2,7), having slope - 4 over 9

If y varies directly as x, and y is 18 when x is 5, which expression can be used to find the value of y when x is 11? A. Y = 5/18 (11) B. Y = 18/5 (11) C. Y = (18) (5) / 11 D. Y = 11 / (18) (5)

A problem on a multiple-choice quiz is answered correctly with probability 0.9 if a student is prepared. an unprepared student guesses between 4 possible answers, so the probability of choosing the right answer is 1/4.

The sum of two numbers is 47 and the difference is 9 what are the numbers?

List two properties of the polygon in the grid

what are the new coordinates after reflecting across x=2 if the coordinates are K (-2,-1) L (-2,-3) M (-5,-3) N (-5,-1)

What is x and y to 3y+7x=4 - 6x+y=-7