4. Let P (n) be the statement that a postage of n cents can be formed using just 4-cent stamps and 7-cent stamps. The P1: 1 CH05-7R Rosen-2311T MHIA017-Rosen-v5.cls May 13, 2011 10:25 342 5 / Induction and Recursion parts of this exercise outline a strong induction proof that P (n) is true for n ≥ 18. a) Show statements P (18), P (19), P (20), and P (21) are true, completing the basis step of the proof. b) What is the inductive hypothesis of the proof? c) What do you need to prove in the inductive step? d) Complete the inductive step for k ≥ 21. e) Explain why these steps show that this statement is true whenever n ≥ 18.

answer

explanation

the area of a circle is calculated using the formula

or

we can use any of the above formulae to calculate the required. preferably, let us use the latter since the diameter is

we substitute the diameter into the formula to get:

this is the exact value for the area of the circle.

the correct answer is a

just find the gcf and solve the gcf's until you get each answer i have a really good feeling somethings missing xd (like the dimensions of the fence) *cough *cough *hint *hint

step-by-step explanation:

chad should not have included the values (1, 2) and (3, 6) because that would mean he only had half a healing card.

the answer is c)8

step-by-step explanaction: