If f(x) varies directly with x, and f(x) = 18 when x = 2, find the value of f(x) when x = 6.
a...
Mathematics, 26.08.2019 01:30 donaldwilliams31
If f(x) varies directly with x, and f(x) = 18 when x = 2, find the value of f(x) when x = 6.
a.
6
b.
18
c.
36
d.
54
Answers: 1
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Element x decays radioactively with a half life of 8 minutes. if there are 450 grams of element x, how long, to the nearest tenth of a minute, would it take the element to decay to 37 grams?
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The average human heart beats 1.15 \cdot 10^51.15β
10 5 1, point, 15, dot, 10, start superscript, 5, end superscript times per day. there are 3.65 \cdot 10^23.65β
10 2 3, point, 65, dot, 10, start superscript, 2, end superscript days in one year.how many times does the heart beat in one year? write your answer in scientific notation, and round to one decimal place.
Answers: 1
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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.
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