Ava has a large TV. The TV has a screen with a 51 inch diagonal and width of 45 in. The base of the TV is 4. From the bottom of the screen. Please explain how you go your answer.​

the answer is d

step-by-step explanation:

its c or d   take a lucky guess my dude

, 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