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zhenek [66]
3 years ago
14

I guess the answer is D

Mathematics
2 answers:
Lisa [10]3 years ago
5 0
Yes the answer is D. because the area is L×W the length is 8 and the width is 7+x soooo, 8(7+x) is 56+8x
DiKsa [7]3 years ago
3 0
Yeah the answer is D
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Aliun [14]

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4 years ago
The population of bacteria in a culture doubles every 14 hours. How long will it take for
Snezhnost [94]

Answer:  22 hours 11 minutes

<u>Step-by-step explanation:</u>

P=P_o\cdot e^{(kt)}\\\\\text{Since the initial population is doubled in 14 hours, then:}\\2P_o=P_o\cdot e^{k\cdot 14}\\2=e^{14k}\\ln\ 2=ln\ e^{14k}\\ln\ 2=14k\\\\\dfrac{ln\ 2}{14}=k\\\\0.0495=k\\\\\\\text{Now that the k-value has been determined, we can find the time when the}\\\text{population is tripled:}\\3P_o=P_o\cdot e^{0.0495t}\\3=e^{0.0495t}\\ln\ 3=ln\ e^{0.0495t}\\ln\ 3=0.0495t\\\\\dfrac{ln\ 3}{0.0495}=5\\\\22.19=t\\\\22\ hrs +0.19\ hrs

22\ hours + \bigg[\dfrac{19}{100}=\dfrac{x}{60}\bigg]\\\\22\ hours + 11\ minutes

4 0
3 years ago
Solve for t.<br> 3t + 9 &gt; -21
RideAnS [48]

Answer:

3t>-30

t>-10

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3 0
3 years ago
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