A historian took a count of the number of people in a Gold Rush town for six years in the 1870's Year
1871
1872
1873
1874
Population
480
494
494
480
452
1870
1875
410
1876
354
Find a quadratic function that models the data as a function of x, the number of years since 1870. Use the model to estimate the number of
people in the town in 1878
O a. P(x) - -3x? - 21x + 430; 136 people
b. P(x) - -7° + 21x + 480; 284 people
OC. P(x) = -3x? - 21x + 430; 70 people
O d. P(x) - -7° + 21x + 480, 200 people

Martha has a deck of cards. she has lost some of the cards, and now the deck only contains nine spades, eleven diamonds, eight clubs, and twelve hearts. martha predicts that whenever she draws a card from the deck without looking, she will draw a club one-fifth of the time. which activity would best allow martha to test her prediction? a. randomly draw a card from the box and see if it is a club. b. randomly draw a card. then, continue to draw another card until all eight clubs are drawn. c. randomly draw and replace a card 120 times. then, observe how close to 30 times a club is drawn. d. randomly draw and replace a card 100 times. then, observe how close to 20 times a club is drawn.