Respuesta :
Answer:
1071
Step-by-step explanation:
a(n) = a +(n-1)d
a=-4
d=-21+4=-17
°.° a(64) = -4 +(64–1)-17
=-1071
hope this helps
Answer:
1071
Step-by-step explanation:
a(n) = a +(n-1)d
a=-4
d=-21+4=-17
°.° a(64) = -4 +(64–1)-17
=-1071
hope this helps