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yulyashka [42]
3 years ago
12

HELP ITS URGENT a. b. c. or d.???

Mathematics
2 answers:
il63 [147K]3 years ago
8 0

Answer:

It's the last option, (a-c)√x + b√y

Step-by-step explanation:

Misha Larkins [42]3 years ago
7 0

Answer: this is 100% c im acutary learning this so my kind sir its c

Step-by-step explanation:   ෆܫෆ hope this help ෆܫෆ

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Answer:

Rate of growth of bacteria when t=2 is 3.09 bacteria/hour

Step-by-step explanation:

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\frac{dP}{dt}=\frac{d}{dt}490(1+\frac{4t}{50+t^{2}})\\\\\frac{dP}{dt}=490(\frac{d}{dt}(1)+\frac{d}{dt}(\frac{4t}{50+t^{2}}))\\\\\frac{dP}{dt}=490(0+\frac{4(50+t^{2})-(4t)(2t)}{(50+t^{2})^{2}})\\\\\frac{dP}{dt}=490(\frac{200+4t^{2}-8t^{2}}{(50+t^{2})^{2}})\\\\\frac{dP}{dt}=490(\frac{4(50-t^{2})}{(50+t^{2})^{2}})\\\\at\,\,t=2hours\\\\\frac{dP}{dt}=490(\frac{4(50-(2)^{2})}{(50+(2)^{2})^{2}})\\\\\\\frac{dP}{dt}=490(\frac{4(50-4)}{(50+4)^{2}})\\\\=3.09

Rate of growth of bacteria when t=2 is 3.09 bacteria/hour

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3 years ago
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Step-by-step explanation:

\sqrt{121}  +  \sqrt{50}  \\  = 11 + 5 \sqrt{2}

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