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At the beginning of an experiment, a scientist has 276 grams of radioactive
goo. After 90 minutes, her sample has decayed to 34.5 grams.
What is the half-life of the goo in minutes?
Find a formula for `G(t)`, the amount of goo remaining at time `t`. `G(t) = `
How many grams of goo will remain after 20 minutes?
What is the half-life of the goo in minutes?
Find a formula for `G(t)`, the amount of goo remaining at time `t`. `G(t) = `
How many grams of goo will remain after 20 minutes?
Box 1: Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)
Enter DNE for Does Not Exist, oo for Infinity
Box 2: Enter your answer as an expression. Example: 3x^2+1, x/5, (a+b)/c
Be sure your variables match those in the question
Box 3: Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)
Enter DNE for Does Not Exist, oo for Infinity