Please answer i need help

C. 468mm^2

Step-by-step explanation:

Using the formula for finding the surface area of cuboids [ S = 2(lw + lh + wh) ]

we have found the answer 468mm^2.

(Sorry for taking so long for a short explanation!

l = length , w = width , h = height . Just do the calculation with the algebra I have set out for you)

[Hey, if the answer is wrong in this question, feel free to message me!]

answer

point o.

step-by-step explanation:

, 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