Write an expression to describe a rule for the sequence. then find the 100th term in the sequence. 4,9,14,19,24, a. 4+5n; 504 b. 5n-1; 499 c. 5n; 500 d. 4n+5; 405

Hello,

Write an expression to describe a rule for the sequence. Then find the 100th term in the sequence. 4,9,14,19,24,29...

Rule: +5

This question was relatively simple because all you had to do was divide the total in the answer choices by 100 and to see if you would get by 5

Since it starts at 4 and that dosen't evenly match with 100 the answer is A. 4+5n;504

37

step-by-step 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.