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jek_recluse [69]
3 years ago
6

A bacteria culture is doubling in size of every day. If the bacteria culture starts at 5,200, write an equation for its populati

on size,p, as a function of the number of days ,d, since it started
Mathematics
1 answer:
ankoles [38]3 years ago
7 0
<h2>Hello!</h2>

The answer is:

The equation is:

Total(t)=5200*(2)^{t}

<h2>Why?</h2>

It's an exponential growth problem, we can calculate the exponential growth using the following equation:

Total(t)=StartPopulation*(1+r)^{\frac{t}{2}}

Where,

Total, is the total population after "t" time in days.

Start population, for this is equal to 5,200

r,is equal to the percent of growth, for this case it's 100% each day.

t, is the time elapsed.

So, rewriting the equation, we have:

Total(t)=5200*(1+\frac{100}{100})^{t}

Total(t)=5200*(1+1)^{t}

Total(t)=5200*(2)^{t}

Have a nice day!

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Answer:

Step-by-step explanation:

85% of 2500 m

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plz mark it as brainliest!!!!!!

6 0
3 years ago
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PLEASE HELPP !! The ceiling of Stacy's living room is a square that is 25 ft long on each side. Stacy knows the diagonal of the
EleoNora [17]

Answer:

a) d = 36 ft. ( using Pithagoras´theorem )

b) d = 36 ft  ( Using ( function sin ) trigonometry

Step-by-step explanation:

a) Using Pythagoras´Theorem:

Diagonal (d) is the hypothenuse of a right triangle of side 25 feet, and according to Pythagoras´Theorem in a right triangle.

d²  =  a²  +  b²  

In this particular case  a =  b  =  25 feet then

d² =  (25)²  +  ( 25)²

d  = √ 2 * (25)²

d  = √2   * 25

d  =  1,414*25

d  =  35,35

d = 36 ft.

b) Using trigonometry:

We know that sin 45° = cos 45° =  √2 / 2

In a right triangle

sin α  =  opposite side / hypothenuse (d)

sin 45°  =  √2 / 2   =  25/ d

√2 *d  =  2* 25

d  =  50/√2

d  =  50 / 1,414

d  =  35,36

d = 36 ft

6 0
3 years ago
Which choices are equivalent to the expression below? Check all that apply.<br> 3sqrt8
Serga [27]
It is C, D and F

-/72
3 0
3 years ago
Rabies is an often-fatal disease typically transmitted through the bite of an infected animal. The state of Florida has been rec
slega [8]

Answer:

a) 3.6

b) 1.897

c)0.0273

d) 0.9727

Step-by-step explanation:

Rabies has a rare occurrence and we can assume that events are independent. So, X the count of rabies cases reported in a given week is a Poisson random variable with μ=3.6.

a)

The mean of a Poisson random variable X is μ.

mean=E(X)=μ=3.6.

b)

The  standard deviation of a Poisson random variable X is √μ.

standard deviation=S.D(X)=√μ=√3.6=1.897.

c)

The probability for Poisson random variable X can be calculated as

P(X=x)=(e^-μ)(μ^x)/x!

where x=0,1,2,3,...

So,

P(no case of rabies)=P(X=0)=e^-3.6(3.6^0)/0!

P(no case of rabies)=P(X=0)=0.0273.

d)

P(at least one case of rabies)=P(X≥1)=1-P(X<1)=1-P(X=0)

P(at least one case of rabies)=1-0.0273=0.9727

8 0
3 years ago
What is a simple event?
konstantin123 [22]

Answer:

an event with no possible outcomes

Step-by-step explanation:

because there is only one posible thing that can happen

8 0
3 years ago
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