STR! For the TORmentoring-thingyyyy :-bd
2 - Math
Vance p. 179 [NOTE: t1 is the 1st term, so tn is the nth term. d is the common difference, and Sn is the sum of the general finite arithmetic progression]
Write the next 3 terms in each of the following arithmetic progressions and find tn and Sn.
2) 27, 25, 23, ... to 30 terms
4) -5/4, -1/4, 3/4, ... to 8 terms
Three of the elements t1, tn, d, n, and Sn of the arithmetic progression are given. Find the missing elements in each case.
6) t1 = 3, n=4, tn=12
8) d=3, n=5, tn=14
12) Find the value of k so that 8k+4, 6k-2, and 2k-7 will form an arithmetic progression
14) The 18th and 52nd terms of an arithmetic progression are 3 and 173 respectively. Find the 25th term.
15) Find the sum of all the even integers from 12 to 864, inclusive.
20) Insert one arithmetic mean between 34 and 68. Such a number is called the arithmetic mean of the two numbers.
24) If a2, b2, and c2 form an arithmetic progression, show that a + b, c+a, and b+c form a harmonic progression.
25) How many numbers between 10 and 200 are exactly divisible by 7? Find their sum.
25) How many numbers between 10 and 200 are exactly divisible by 7? Find their sum.
3 - SS3
On Friday, Nico, Adrian, JP, Lyon and I will be teaching you. Yay!
Aherm.
We did have chem homework. -____-