(a) Define a sequence {ck}, where ck is the number of ways to make change for k cents using pennies, nickels, dimes and quarters. Give a generating function for the sequence {ck}. (b) How would the generating function from the previous problem change if only 10 pennies can be used

70

step-by-step explanation:

2*5=10

4*15=60

60+10=

70

the answer is d

the answer is in the first quadrant, which make the y-int positive.

since the dots are going down, therefore the correlation is negative

i hope it is right.

a. 12.5 kg

step-by-step explanation:

f = ma

so

m = f/a = (2500 n)/(200 m/s²) = 12.5 kg

1 n = 1 kg·m/s²

step-by-step explanation:

points a and b are equidistant from the desired line, so the line you find by using them will go through point r.

using points other than a and b will give the desired line only if they are equidistant from r. if they are randomly located, the perpendicular line you create will not necessarily go through point r, hence will not be a solution to the problem.