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Sedaia [141]
3 years ago
9

Question:

Mathematics
2 answers:
Minchanka [31]3 years ago
8 0

Answer:

18 feet

Step-by-step explanation:

9/12 = 0.75

24 x 0.75 = 18

NISA [10]3 years ago
6 0

Answer:

18

Step-by-step explanation:

24x .75 =18

<em><u>24 \times .75 = 18</u></em>

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c

Step-by-step explanation:

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2 years ago
Litter such as leaves falls to the forest floor, where the action of insects and bacteria initiates the decay process. Let A be
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Answer:

D = L/k

Step-by-step explanation:

Since A represents the amount of litter present in grams per square meter as a function of time in years, the net rate of litter present is

dA/dt = in flow - out flow

Since litter falls at a constant rate of L  grams per square meter per year, in flow = L

Since litter decays at a constant proportional rate of k per year, the total amount of litter decay per square meter per year is A × k = Ak = out flow

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∫-kdA/-k(L - Ak) = ∫dt

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1/k㏑(L - Ak) = t + C

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taking exponents of both sides, we have

L - Ak = e^{kt + C'} \\L - Ak = e^{kt}e^{C'}\\L - Ak = C"e^{kt}      (C" = e^{C'} )\\Ak = L - C"e^{kt}\\A = \frac{L}{k}  - \frac{C"}{k} e^{kt}

When t = 0, A(0) = 0 (since the forest floor is initially clear)

A = \frac{L}{k}  - \frac{C"}{k} e^{kt}\\0 = \frac{L}{k}  - \frac{C"}{k} e^{k0}\\0 = \frac{L}{k}  - \frac{C"}{k} e^{0}\\\frac{L}{k}  = \frac{C"}{k} \\C" = L

A = \frac{L}{k}  - \frac{L}{k} e^{kt}

So, D = R - A =

D = \frac{L}{k} - \frac{L}{k}  - \frac{L}{k} e^{kt}\\D = \frac{L}{k} e^{kt}

when t = 0(at initial time), the initial value of D =

D = \frac{L}{k} e^{kt}\\D = \frac{L}{k} e^{k0}\\D = \frac{L}{k} e^{0}\\D = \frac{L}{k}

4 0
3 years ago
What is the mode of this data set? {8, 11, 20, 10, 2, 17, 15, 5, 16, 15, 25, 6}
lidiya [134]
The mode is what appears the most so 15 is the answer because it appears the most.
8 0
3 years ago
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Gekata [30.6K]

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Step-by-step explanation:

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2 years ago
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Step-by-step explanation:


7 0
3 years ago
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