Mathematics, 12.10.2019 18:30 lolo15xxx
Radioactive uranium-235 has a half-life of about 700 million years. suppose you find a rock and chemical analysis tells you that only one sixteenth
of the rock's original uranium-235 remains. how old is the rock?
a.
2.8 billion years old
b.
1.4 billion years old
c.
175 million years old
d.
2.1 billion years old
e.
3.5 billion years old
f.
350 million years old
Answers: 3
Mathematics, 21.06.2019 18:30, princessbri02
Which of the following is the result of expanding
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Mathematics, 21.06.2019 19:00, whitethunder05
Ineed to know the answer to this algebra question.
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Mathematics, 22.06.2019 01:00, s27511583
The weight of 46 new patients of a clinic from the year 2018 are recorded and listed below. construct a frequency distribution, using 7 classes. then, draw a histogram, a frequency polygon, and an ogive for the data, using the relative information from the frequency table for each of the graphs. describe the shape of the histogram. data set: 130 192 145 97 100 122 210 132 107 95 210 128 193 208 118 196 130 178 187 240 90 126 98 194 115 212 110 225 187 133 220 218 110 104 201 120 183 124 261 270 108 160 203 210 191 180 1) complete the frequency distribution table below (add as many rows as needed): - class limits - class boundaries - midpoint - frequency - cumulative frequency 2) histogram 3) frequency polygon 4) ogive
Answers: 1
Radioactive uranium-235 has a half-life of about 700 million years. suppose you find a rock and chem...
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