Quiz: practice unit 3 test
this question: 1 pt
1 of 17 (7 complete)
the rectangle shown has a perimeter of 86 cm and the given area. its length is 8 more than four times its width.
write and solve a system of equations to find the dimensions of the rectangle.
a-252 cm?
the length of the rectangle is
cm and the width of the rectangle is
cm.
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Answer asap ill give ! ’ a sample of radioactive material decays over time. the number of grams, y , of the material remaining x days after the sample is discovered is given by the equation y = 10(0.5)^x. what does the number 10 represents in the equation? a. the half-life of the radioactive material, in days b. the amount of the sample, in grams, that decays each day c. the time, in days, it will take for the samples to decay completely d. the size of the sample, in grams, at the time the material was discovered