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ki77a [65]
3 years ago
8

5. There are 4200 bacteria in a lab dish. The population decreases 8%per day. How many bacteria are there after day 1? Round to

nearest whole number
A. 3864 C 6483
B. 8634 D 4683​
Mathematics
1 answer:
Mamont248 [21]3 years ago
8 0

Answer:There are 4200 bacteria in a lab dish. The population decreases 8%per day. How many bacteria are there after day 1? Round to nearest whole number

Step-by-step explanation:

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A circle has a circumference of 12 inches. What is the approximate area of the circle?
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Answer:

11.46 I believe

Step-by-step explanation:

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Sandra saves 7% of her salary for retirement. This year her salary was $2,000 more than her salary than in the previous year, an
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9514 1404 393

Answer:

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Step-by-step explanation:

Where x represents the previous year's salary, its amount this year is said to be ...

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The equation is trying to reflect the fact that 7% of that is $3,290. The missing number is 2000:

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The diameter of a circle is 16 in . Find its circumference in terms of pi?
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Answer:

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3 years ago
Algebra 2 (picture shown)
TEA [102]

Answer:

<em>M(13)=14.3 gram</em>

Step-by-step explanation:

<u>Exponential Decay Function</u>

The exponential function is used to model natural decaying processes, where the change is proportional to the actual quantity.

An exponential decaying function is expressed as:

C(t)=C_o\cdot(1-r)^t

Where:

C(t) is the actual value of the function at time t

Co is the initial value of C at t=0

r is the decaying rate, expressed in decimal

The element has an initial mass of Mo=970 grams, the decaying rate is r=27.7% = 0.277 per minute.

The equation of the model is:

M(t)=M_o\cdot(1-r)^t

M(t)=970\cdot(1-0.277)^t

Operating:

M(t)=970\cdot 0.723^t

After t=13 minutes the remaining mass is:

M(13)=970\cdot 0.723^{13}

Calculating:

M(13)=14.3 gram

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3 years ago
Use long division to convert the rational number 4/9 to its equivalent decimal form. In your final answer, include all of your w
mamaluj [8]
4/9=9/40=4 remainder 4 so 4.4
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3 years ago
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