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VCabral1134
 one year ago
Help me plz will fan and give medal!
Write the explicit formula for the geometric sequence. Then find the fifth term in
the sequence.
a^1 = −3, a^2 = 15, a^3 = −75
a. an = −3 ⋅ (−5)n ; 9375
c. an = −3 ⋅ (5)n ; –1875
b. an = −5 ⋅ (−3)n − 1 ; –405
d. an = −3 ⋅ (−5)n − 1 ; –1875
VCabral1134
 one year ago
Help me plz will fan and give medal! Write the explicit formula for the geometric sequence. Then find the fifth term in the sequence. a^1 = −3, a^2 = 15, a^3 = −75 a. an = −3 ⋅ (−5)n ; 9375 c. an = −3 ⋅ (5)n ; –1875 b. an = −5 ⋅ (−3)n − 1 ; –405 d. an = −3 ⋅ (−5)n − 1 ; –1875

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Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1\[\huge\rm a_n = a_1 \times r^{n1}\] equation to find nth term of geometric seq. where a_1 is first term r= ratio n= term that u need

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1to find common ratio divide next term with the previous one \[\large\rm r=\frac{ a_2 }{ a_1}~~or~~\frac{ a_3 }{ a_2} \]

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1a_2 = 2nd term a_3 = 3rd term

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1let me check wait a sec
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