Please help to solve this.
Find sin5x, if sinx+cosx=1,4

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An equation in slope-intersept form the lines that passes thought (-8,1) and is perpindicular to the y=2x-17.

Sasha delivers newspapers to subscribers that live within a 4 block radius of her house. sasha's house is located at point (0, -1). points a, b, c, d, and e represent the houses of some of the subscribers to the newspaper. to which houses does sasha deliver newspapers?