Find the first, fourth, and eighth terms of the sequence. a(n) = –3 • 2n–1 a. –12; –96; –1,536 b. –3; –24; –384 c. –6; –48; –768 d. 1; –216; –279,936

  B. -3; -24, -384

Step-by-step explanation:

The first term is the multiplier of the exponential function, -3. That tells you immediately that the only correct answer choice is B.

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The general term of a geometric sequence is ...

  an = a1·r^(n-1)

where a1 is the first term and r is the common ratio.

a = 3.14

b = 18

c = 18/5 or 3.6 or 3 3/5

step-by-step explanation:

isaiah walks 3 miles due north, turns and then 5 miles due east. how far is he from his starting point?

a^2 + b^2 = c^2

let c = distance from starting point.

(3)^2 + (5)^2 = c^2

9 + 25 = c^2

34 = c^2

sqrt{34} = sqrt{c^2}

sqrt{34} = c