5,0,-5,-10,-15 20th Term

5,0,-5,-10,-15 20th term

 

Answer:

a20=-90

Step-by-step explanation:

an=a1+(n-1)d

a1=5

n=20

d=-5

a20=5+(20-1)(-5)

a20=5+19(-5)

a20=5+(-95)

a20=-90

#JuneChallenge


Comments

Post a Comment

Popular posts from this blog

(3x+1)\Xb3 What Is The Product, (7y-2)\Xb3 What Is The Product, (5m+9n)\Xb3 What Is Product

(3x+1)³ what is the product (7y-2)³ what is the product (5m+9n)³ what is product   Answer: 1) 27x³ + 27x² + 9x +1 2) 343y³ - 205y² + 84y - 8 3) 125m³ + 675m²n + 1215mn² + 729 n³ Step-by-step explanation: * (3x+1)³ = (3x+1) (3x+1) (3x+1) = 27x³ + 18x ² + 3x + 9x² + 6x +1 = 27x³ + 27x² + 9x +1 * (7y-2)³ = (7y-2) (7y-2) (7y-2) = 343y³ - 196y² + 28y - 98y² + 56y - 8 = 343y³ - 205y² + 84y - 8 * (5m+9n)³ = (5m+9n) (5m+9n) (5m+9n) = 125m³ + 450m²n + 405 mn² + 225m²n + 810mn² + 729n³ = 125m³ + 675m²n + 1215mn² + 729n³
Read more