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3 years ago

Ashley's older brother, Jamaal, is planning to ride his bicycle from Los Angeles to Washington D.C., a distance of 2,668 miles.

Mathematics

2 answers:

Elden [556K]3 years ago

7 0

Answer:

B.60

Step-by-step explanation:

He expects to take 2 months to complete the ride. What is the minimum number of miles that he must plan to ride each day to complete his ride in 60 days?

It's 60 miles per day to get to Los Angeles to Washington D.C

Hope it helped you brainiest plz and thank you!!!!!!!!!!!

harkovskaia [24]3 years ago

6 0

The correct answer is B 60

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For the Decades of Dollars lottery game in Georgia, a player chooses 6 different numbers from 1 to 47, inclusive. To win the jac

Andrej [43]

Answer:

1/10,737,573

Step-by-step explanation:

The number of possible outcome is

47 combination 6

nCr=n!/(n-r)!r!

Then,

47C6 = 47!/(47-6)!6!

47C6=47!/41!6!

47C6=47×46×45×44×43×42×41!/41!6×5×4×3×2×1

47C6=47×46×45×44×43×42×/720

47C6=10737573

This the sample space of groups 6 numbers.

So to win a jackpot, you need to pick one of the possible outcome

P(winning jackpot)= 1/10,737,573

Wow, this result shows that it is not easy to win a jackpot from lottery games, it is on rare occasions to have the combine 6 numbers.

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4 years ago

Mr smith is painting the wall but not the door how much gallons is needed to paint it

fredd [130]

Answer:

How the f am I supposed to know

Step-by-step explanation:

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3 years ago

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The introduction of ukiyo-e created a demand for products from which country?

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The introduction of ukiyo-e created a demand for products from Japan...

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4 years ago

A culture of the bacterium Salmonella enteritidis initially contains 50 cells. When introduced into a nutrient broth, the cultur

photoshop1234 [79]

Answer:

The expression for the number of bacteria after t hours is $P(t) = 50e^{0.2922t}$

Step-by-step explanation:

When introduced into a nutrient broth, the culture grows at a rate proportional to its size.

This means that the size of the population, after t hours, is modeled by the following differential equation:

$\frac{dP}{dt} = rP$

In which R is the growth rate.

The solution of this differential equation is:

$P(t) = P(0)e^{rt}$

In which P(0) is the initial population.

A culture of the bacterium Salmonella enteritidis initially contains 50 cells.

This means that $P(0) = 50$ , and so:

$P(t) = P(0)e^{rt}$

$P(t) = 50e^{rt}$

After 1.5 hours, the population has increased to 775.

This means that $P(1.5) = 775$ . We use this to find r. So

$P(t) = P(0)e^{rt}$

$500e^{1.5r} = 775$

$e^{1.5r} = \frac{775}{500}$

$\ln{e^{1.5r}} = \ln{\frac{775}{500}}$

$1.5r = \ln{\frac{775}{500}}$

$r = \frac{\ln{\frac{775}{500}}}{1.5}$

$r = 0.2922$

The expression is:

$P(t) = 50e^{rt}$

$P(t) = 50e^{0.2922t}$

The expression for the number of bacteria after t hours is $P(t) = 50e^{0.2922t}$

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3 years ago

What is the solution to the system of equations?<br> x+y+3z=-4 <br> 2x-z=-3<br> -x-y-2z=5

goblinko [34]

x=-4-y-3z

x=-3/2+1/2z

x=-5-y-2z

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3 years ago