Strontium 90 is a radioactive material that decays according to the function A(t)=A_{0} e^{-0.0244 t},A(t)=A
0 e −0.0244t, where A_{0}A 0 is the initial amount present and A is the amount present at time t (in years). Assume that a scientist has a sample of 800 grams of strontium 90. What is the decay rate of strontium 90?

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d

step-by-step explanation:

given

y + 3 = - 4(x - 2) ← distribute the parenthesis

y + 3 = - 4x + 8 ( subtract 3 from both sides )

y = - 4x + 5 → d

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step-by-step explanation:

can i have brainliest

4.

step-by-step explanation:

it have the same area.brainliest