Write the first five of the sequence defined by the recurive formal t1=3 and tn=tn-1+5

3, 8, 13, 18, 23

Step-by-step explanation:

To find the first 5 terms substitute n = 2, 3, 4, 5 into the recursive formula, that is

t₂ = t₁ + 5 = 3 + 5 = 8

t₃ = t₂ + 5 = 8 + 5 = 13

t₄ = t₃ + 5 = 13 + 5 = 18

t₅ = t₄ + 5 = 18 + 5 = 23

The first 5 terms are 3, 8, 13, 18, 23

true

explanation:

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.