The amount of Carbon-14 in a wooden spoon found at an archeological site is 2.1 grams. Spoons of this type are known to contain 10 grams of Carbon-14 at their time of creation, and the amount of Carbon-14 x years after the creation of this artifact is modeled by C(x) = 10 times (0.5)t the power of n over 5730. How many years ago was this spoon made? A 27,285.1 years B 12,901.4 years C 2,641.5 years D 6,133.3 years

Which situation can be modeled by the inequality 5 + 10w ≥ 45? a. you start with $5 and save $10 a week until you have at least $45. b. you start with 5 baseball cards and purchase 10 cards every week until you have at most 45 cards. c. you start with 5 water bottles and purchases cases of 10 water bottles each until you have a total of 45 water bottles. d. you spend $5 plus $10 per week until you have less than $45.

[15 points]find the least common multiple of the expressions: 1. 3x^2, 6x - 18 2. 5x, 5x(x +2) 3. x^2 - 9, x + 3 4. x^2 - 3x - 10, x + 2 explain if possible

Ofof is a ? a. (1, 2), (1,-2), (3, 2), (3, 4) b. (1,6), (2, ,9), (0,5) c. (0, 2), (2,3), (0, -2), (4,1) d. (2, 4), (0, 2), (2, - 4), (5,3)