Write 4.9 × 10–8 in decimal notation. a. 0.000000049 b. 0.0000000049 c. 490,000,000 d. 0.0000004 determine the quotient: (7.7 × 10–2) ÷ (2.2 × 10–2). write your answer in scientific notation. a. 3.5 × 10–4 b. 3.5 × 104 c. 3.5 d. 3.5 × 10–2 determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation. a. 4.3 × 100 b. 2.1 × 100 c. 4.3 × 1010 d. 2.1 × 1010 simplify a × 3a3b a. 2a4b7 b. 3a4b c. 4a2b2 d. 6a4b2 write the expression 23⁄5 as a radical.           a.   b. ∛32   c.   d. ∛25 which sequence follows the rule an =an–1 + 7? a. 11, 18, 25, 32, b. –9, –2, 4, 9, c. –15, –7, 1, 8, d. 17, 24, 30, 38, determine the difference: 3.2 × 1010 – 1.1 × 1011 write your answer in scientific notation. a. –0.78 × 1010 b. –7.8 × 10–1 c. –7.8 × 1010 d. –7.8 × 1011 a sequence consists of the positive odd integers. what is the sum of the first 12 terms of the sequence? a. 115 b. 169 c. 144 d. 121 what is the sum of ten terms of a finite arithmetic series if the first term is 13 and the last term is 89? a. 520 b. 500 c. 510 d. 490 what is the domain of the function y = –2(2)x + 2? a. (–∞,2) b. (–∞,0) c. (0,∞) d. (–∞,∞) how much money will you have after 10 years if you invest $2,500 into an account that pays 12% per year, compounded annually? (remember, the formula is a = p(1 + r)t.) a. $7,764.62 b. $7,846.07 c. $7,674.68 d. $8,784.14 write 34392.55 in scientific notation. a. 3.439255 × 10−4 b. 3.439255 × 103 c. 3.439255 × 10−3 d. 3.439255 × 104 suppose your grandparents put $500 into an investment that earns 12% interest each year. how much, to the nearest cent, will be in the account after 10 years? (remember, the formula is a = p(1 + r)t.) a. $1947.99 b. $1296.87 c. $1569.21 d. $1552.92 determine the product: (46.2 × 10–1) ⋅ (5.7 × 10–6). write your answer in scientific notation. a. 2.6334 × 10–7 b. 2.6334 × 10–1 c. 2633.4 × 10–5 d. 2.6334 × 10–5 what is the range of the function y = –2(2)x + 2? a. (–∞,–2) b. (–∞,∞) c. (–2,2) d. (–∞,2) determine the quotient: (22.8 × 10–3) ÷ (5.7 × 10–6). write your answer in scientific notation. a. 4 × 10–3 b. 4 × 10–9 c. 4 × 10–6 d. 4 × 103