A cylindrical container that contains three tennis balls that are 2.7 inches in diameter is lying on its side and passes through an X-ray scanner that scans from the top only. What outline will appear on the x-ray screen, and what are the dimensions?

A circle with a diameter of 2.7 in

A circle with a diameter of is 5.4 in

A rectangle that is 5.4 in x 8.1 in

A rectangle that is 2.7 in x 8.1 in

47

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