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ICE Princess25 [194]
3 years ago
6

Show work 9-17 please do

Mathematics
1 answer:
iragen [17]3 years ago
4 0
8, 5, 1, 12, 4 work shown in picture.

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A colony of bacteria is growing at a rate of 0.2 times its mass. Here time is measured in hours and mass in grams. The mass of t
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Answer:

a) dm/dt = 0.2m

b) ln(m) = 0.2t + A

c) ln(m) = 0.2t + ln(20) - 0.6

d) 11 grams

Step-by-step explanation:

a) dm/dt = 0.2m

b) dm/m = 0.2dt

ln(m) = 0.2t + A

c) At t = 3, dm/dt = 4

dm/dt = 0.2m

4 = 0.2m

m = 4/0.2 = 20

So, when t = 3, m = 20

ln(20) =0.2(3) + A

A = ln(20) - 0.6

ln(m) = 0.2t + ln(20) - 0.6

d) find m when t=0

ln(m) = 0.2(0) + ln(20) - 0.6

ln(m) = ln(20) - 0.6

ln(m) = 2.3957322736

m = e^2.3957322736

m = 10.9762327224

m = 11

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3 years ago
Which expression is equivalent to 6 - (-21) ? *<br> O 6-21<br> O 6+21<br> O-21-6<br> 0 -21 +6
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6+21 because when u multiple -1 with -21 it gives u +21
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Answer:

d

Step-by-step explanation:

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2 years ago
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at a basketball game, a vendor sold a combined total of 218 sodas and hotdogs. The number of hotdogs sold was 50 less than the n
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9514 1404 393

Answer:

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Step-by-step explanation:

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134 sodas were sold; 84 hot dogs were sold.

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3 years ago
What is a supplementary angle?
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Either of two angles whose sum is 180 degrees

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