Which best describes the relationship between hardware and software? software instructs hardware how to perform. software allows users to interact with hardware. hardware directs the performance of software. hardware enables software to perform correctly

software is a collection of programs used to perform a particular task.

hardware is any machinery.

Answer B

software allows user to interact with hardware and to use hardware to do the required work.

, 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