Y = 300e^(-Bt)
plug in y = 75 and t = 2
75 = 300e^(-2B)
75/300 = e^(-2B)
ln(75/300) = -2B
B = -ln(75/300) / 2
so B = approx 0.693300 = A(e^0) = A
<span>A = 300
</span>. 9.4 mg left in the bloodstream after 5 hours.
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Answer:
to
Step-by-step explanation:
Answer
Tyrone's scarf is 15 inches long
Step-by-step explanation:
34-4= 30
30/2= 15
Answer:
x < -1
Step-by-step explanation:
Hi there!

Our goal here is to isolate x on one side of the inequality. We can do this by performing inverse operations.
Add 4 to both sides
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-4 and 4 cancel out on the left side
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Therefore, x < -1.
I hope this helps!
-3/8x is the slope of the problem. y= -3/8x + 7