Answer:
The first 20 terms is -92
Step-by-step explanation:
an=a1+d(n-1)
a20= -16+(-4)(20-1)
a20= -16+(-4)(19)
a20= -16+(-76)
a20= -92
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Answer:
The first 20 terms is -92
Step-by-step explanation:
an=a1+d(n-1)
a20= -16+(-4)(20-1)
a20= -16+(-4)(19)
a20= -16+(-76)
a20= -92