Advanced Algebra Spring Final Review 1) Find the first four terms of the arithmetic sequence an = 3n + 4 2) Find the common difference of the arithmetic sequence 20, 13, 6, -1, -8… 3) Find a7 given an = (𝑛+4)! (𝑛+2)! 4) Write the first four terms of the arithmetic sequence defined by the recursion formula given: a1 = 5 and an = (2n - 1)an-1 (𝑛+1)! 5) Find the sum of the finite series: ∑4𝑛=1 6) Using an = a1 + (n – 1)d, find the 80th term of the arithmetic sequence 3, 20, 37, 54……. 𝑛! 7) Find the 10th term of the geometric sequence 160, -40, 10, -2.5… using an = a1 •(r)n-1. Find the first derivative, the second derivative and evaluate at the given point. 8) f(x) = x3, x = -3 9) f(x) = 5x4, x = 5 10)f(x) = 5x2 - 8x + 4, x = -6 11) f(x) = 2x 4 - 4x 3 + 6x2 – 12x + 5, x = -1 12) An apartment complex has 300 apartments to rent. The profit is given by the equation P(x) = -3x2 +1296x – 50000 where x is the number rented per month. How many apartments should the company rent per month to maximize profit? 13) 1 3 5 ÷ = 4 14) 17) What is 15% of 1200? 3 10 7 × = 8 15) 7 10 18) 23 is what % of 92? 1 − = 4 16) 2 3 1 + = 4 19) 30% of what number is 27? 20) What is the percent increase from 40 to 60? 21) What is the probability of selecting a 3 a 4 or a heart from a deck of cards? 22) There are 10 green marbles, 15 red marbles and 25 blue marbles in a bag. What is the probability of selecting a blue marble, not replacing it, and selecting another blue marble? 23) Steven has 12 dress shirts, 10 ties and 6 pairs cuff links. How many different shirt-tie-cuff links combinations can he make if he selects one of each? 24) Mrs. Lee’s class must elect 6 representatives for student council. There are 16 students in her class. How many ways can this be done? 25) How many different ways can 8 competitors come in first, second and third place in a race? 26) How many different ways can you order 10 DVDs? 27) Simplify: (15 – 1)2 - 24 ÷ 6 28) Given a = 3, b = -2, c = 4, evaluate the following: 5(𝑐 − 2)2 − 6𝑎 + 𝑏 29) Solve: 2n - 7 = 4(n - 5) + 5 30) Solve: 4(3n – 8) + 4 ≥ 11𝑛 − 7 31) Find the slope between (2, 6) and (-7, -3) 32) Simplify: (3√5) (6√20) 33) Multiply: (x – 4)(3x + 2) Formulas: nPr = 𝒏! (𝒏 − 𝒓)! (no repetition, order matters) nr (repetition is allowed, order matters) nCr = nCr = 𝒏! 𝒓!(𝒏 − 𝒓)! (no repetition, order does not matter) (𝒏 + 𝒓 − 𝟏)! 𝒓!(𝒏 − 𝟏)! (repetition is allowed, order does not matter)