1. same as counting numbers 2. first, second, third, ... 3. (... -4, -3, -2, -1, 0, 1, 2, 3, 4, ...) 4. (1, 2, 3, 4, ...) 5. a symbol consisting of three parts: a horizontal bar, a whole number above the bar, and a whole number other than zero below the bar 6. 10 in 104, it is the number to be used as a factor 7. 4 in 104, it is the number of times the base is to be used as a factor 8. number that divides evenly into another number 9. a factor that is also a prime number

relating to or denoting a system of numbers and arithmetic based on the number ten, tenth parts, and powers of ten.

it alot will look like this 4.4

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for

answer:   rotate 270° clockwise about (7, 1) and reflect across the line x = 7

step-by-step explanation:

because i took test