Here we work in the system of integer polynomials. Those are polynomials of the Form f(x)=rnxn+···+r1x+r0 where every coefficient is an integer.
General question:
When does some combination of the polynomials ax + b and cx + d equal 1 ? That is, when do there exist integer polynomials P(x) and Q(x) with
P(x)·(ax + b) + Q(x)·(cx + d) = 1 ? We concentrate here on cases when c = 0.
(a) Prove: No combination of 2x + 5 and 3 can equal 1. That is, no integer polynomials P (x), Q(x) can satisfy:
P (x)·2x + 5 + Q(x)·3 = 1.
(b) Find a combination of 2x + 5 and 4 that equals 1.
(c) Does some combination of 15x+9 and 25 equal 1? How about 15x+9 and 20? Explain your reasoning.
(d) Investigate further examples of ax + b and d, deciding in each case whether 1 is a combination. What patterns do you detect?
Can you prove that some of your observed patterns always hold true?

answer: h

step-by-step explanation:

answer:

125 yards

explanation:

75+50=125. that is my answer

i'm not really sure how to answer that

step-by-step explanation:

answer:

some responsibilities that come with having a checking account -

1. we have to maintain check register with exactness to avoid checks being returned for insufficient funds which is called bouncing a check.

2. we need to update our check register each time we make a transaction using a convenience card. updating check register will   save   us from   overdrawing of checking account.

3. read the agreement the bank gave you when you signed up for our checking account. this includes all the fees and the minimum balance we need to keep in our account to avoid maintenance charges.  

explanation:

note : -   checking account is a transactional deposit account. we can use it to deposit and withdraw funds. money in a checking account is very liquid. it   can be withdrawn using electronic debits, automated cash machines, or checks among other methods.