Mathematics, 23.01.2020 03:31 pandasarecute53
The half-life of (carbon-14) is 5730 years. that is, it takes this many years for half of a sample of to decay. if the decay of is modeled by x' = -rx, where x is the amount of , find the decay constant r. ( r = 0.000121 yr⁻¹). in an artifact the percentage of the original remaining at the present day was measured to be 20 %. how old is the artifact?
Answers: 2
Mathematics, 21.06.2019 13:30, 24lbriscoe
Determine whether the graphs of y=8x+5 and -y=8x-5 are parallel, perpendicular, coincident, or none of these. a. coincident b. parallel c. perpendicular d. none of these
Answers: 1
Mathematics, 21.06.2019 16:30, catdog2230
Determine whether the quadrilateral below is a parallelogram. justify/explain your answer (this means back it up! give specific information that supports your decision. writing just "yes" or "no" will result in no credit.)
Answers: 2
Mathematics, 21.06.2019 19:00, jthollis1348
Find the y-intercept and x-intercept for the equation 5x-3y=60 what is the y-intercept
Answers: 1
The half-life of [tex]^{14}c[/tex] (carbon-14) is 5730 years. that is, it takes this many years for...
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