A certain radioactive material decays at a continuous rate of 4% per year. If the initial mass is 195 grams, how much of the mass remains after 45 years? You may use the formula A(t)=A↓0e^k*t where A(t)is measured in grams.

The mass that remains after 45 years is grams.
Round answer to 1 decimal place.

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Step-by-step explanation:

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55% are girls and 45% are boys : ) hope this

step-by-step explanation:

answer: c, the green line

step-by-step explanation:

there is no black line, eliminate b.

simple interest implies periodic payments, but the red line shows no payments, eliminate d.

simple interest has equal payments. if paid say every day, the graph is about a straight line (actually a stairstep).

the yellow line is not straight, eliminate a.

check: the green line is straight, answer is c.

simple interest with positive interest rate gives a straight line sloping up to the right. green line:

g(t) = $100 + ($200-$100) ÷ (20 years) × (t years)

= $100 + (4%/year) × ($100)(t years)

incidentally, the yellow line curving upward represents continuously compounded interest

y = $100 × 2^(t years / (14 assuming the yellow line hits $200 at 14 years. 2^0 is 1, so y(0) = $100; 2^(14/14) is 2, so y(14) = $200.