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marin [14]
2 years ago
8

Plz help fast!!! p.5

Mathematics
1 answer:
stiv31 [10]2 years ago
3 0
The shaded area = 2 * area of the segment in each circle

area of 1 segment = area of sector - area of triangle formed by the 2 radii
                              = 1/2 * 4^2 * pi/3 -    2*2 sqrt3
                              = 8 pi/3  - 4 sqrt3
so area of shaded part =  2 * the above 
                                     = 16pi/3 - 8 sqrt3
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A hot air balloon rose from a height of 100 m to 400 m in 3 minutes. What was the balloon’s rate of change?
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Answer:

1.666666667 meter per sec^2

Step-by-step explanation:

I feel like this is physic

using acceleration formla Vf-Vi/t

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7 0
2 years ago
The number of bacteria in a culture is given by the function n(t) =950e^0.45t Where t is measured in hours A) what is the contin
tatiyna

Answer:

a) The continuous rate of growth of this bacterium population is 45%

b) Initial population of culture at t = 0 is 950 bacteria

c) number of bacterial culture contain at t = 5 is 9013 bacteria

Step-by-step explanation:

The number of bacteria in a culture is given by

n(t) = 950e^{0.45t}

a) rate of growth is

Bacteria growth model N(t) = noe^{rt}

Where r is the growth rate

hence r = 0.45

              = 45%

b) Initial population of culture at t = 0

n(0) = 950e^{0.45(0)}

       = 950e^{0}

       = 950 bacteria

c) number of bacterial culture contain at t = 5

n(5) =  950e^{0.45(5)}

      = 950e^{2.25}

      = 9013.35

      = 9013 bacteria

6 0
3 years ago
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