Let f(x)=8/(1+3e)^(-0.7x)

Mathematics

1 answer:

Troyanec [42]3 years ago

5 0

For x = -3, <span>(-0.7x) equals (-0.7[-3]), or 2.1.

8 8 8
Then f(-3) = ------------------- = ---------------- = ------------ = 0.31 (approx)
1 + 3*e^2.1 1 + 24.499 25.5</span>

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14.5·x + 9.5·y ≥ 140
7 ≤ y ≤ 10
x + y ≤ 15
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14.5·x + 9.5·y ≥ 140 represents the total amount of money Janine can earn
7 ≤ y ≤ 10 represents the range of values, Janine can spend dishwashing
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