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Allushta [10]
3 years ago
12

Help me thanks Xxxxxxxxx

Mathematics
2 answers:
Vilka [71]3 years ago
8 0

Answer:

The answer is C.

Step-by-step explanation:

SpyIntel [72]3 years ago
8 0
The answer is c.....,,,
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A bacterial culture starts with 500 bacteria and doubles in size every half-hour.
tekilochka [14]

Answer:

a). 32000

b). T_{t}=500\times 4^{t}

c). 1259

Step-by-step explanation:

Growth of a bacteria is always exponential. Therefore, population of the bacteria is represented by the the geometric sequence.

Sum of the bacterial population after t hours will be represented by

T_{n}=ar^{n}

Where a = population at the start

r = ratio with the population is growing

n = time or duration of the growth in one hour

a). Population of 500 bacteria gets doubled after half an hour.

Or gets 4 times after an hour

This sequence will have a common ratio r = 4

and initial population a = 500

Therefore, population of the bacteria after 3 hours will be

T_{3}=500\times 4^{3}

T_{3}=32000  

b). After t hours number of bacteria will be represented by

T_{t}=500\times 4^{t}

c). We have to calculate the population after 40 minutes.

That means duration 't' = 40 minutes of \frac{2}{3} hours

By the formula,

T_{\frac{2}{3}}=500\times 4^{\frac{2}{3}}

T_{\frac{2}{3}}=1259.92 ≈ 1259

Therefore, number of bacteria after 40 minutes will be 1259.

8 0
3 years ago
Read 2 more answers
X - 3/5 =10 give your answer as an improper fraction
elixir [45]

Answer:

53/5

Step-by-step explanation:

Multiply both sides by 5:      5x - 3 = 50

Add 3 to both sides:                   5x = 53

Divide both sides by 5:                x = 53/5

8 0
2 years ago
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What happens to the volume of a rectangular prism when its length is tripled?
earnstyle [38]

The volume of a rectangular prism is represented by the following equation:

V=wlh

where w is the width , l is the length, and h is the height

Replace l with 3l since the length is tripled

V_0=w(3l)h

=3(wlh)

From this, we see that this new volume is 3x larger than the original. Thus, the volume is tripled when its length is tripled.

Let me know if you need any clarifications, thanks!

3 0
3 years ago
Asian began painting his house on Monday He work 5 hrs. longer on Tuesday than he work on Monday. On Wednesday he worked 4 hrs.
jek_recluse [69]
He worked 4 hours on monday.
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3 years ago
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Is square meters a type of surface area
Irina18 [472]

Yes square meters is a type of surface area.

7 0
3 years ago
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