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2 years ago

11

Ill mark brainlist plss help

2 answers:

Nadya [2.5K]2 years ago

5 0

quadrilateral.....hope that helps not rly sure how to explain

Trava [24]2 years ago

3 0

Answer:

quadrilateral

Step-by-step explanation:

its got 4 sides lol

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Solve for x in this equation:3/4+|5-x|=13/4

S_A_V [24]

Well, anything in absolute value lines become positive, so the equation would be:

3/4+5+x=13/4

Next we subtract 3/4 to both sides to start separating the variable (x).

So, 5+x=10/4

Next, we subtract 5 from both sides. (5= 20/4)

And we get: x=-10/4.

I hope this helps!

7 0

3 years ago

Read 2 more answers

During optimal conditions, the rate of change of the population of a certain organism is proportional to the population at time

Lana71 [14]

Answer:

The population is of 500 after 10.22 hours.

Step-by-step explanation:

The rate of change of the population of a certain organism is proportional to the population at time t, in hours.

This means that the population can be modeled by the following differential equation:

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

In which r is the growth rate.

Solving by separation of variables, then integrating both sides, we have that:

$\frac{dP}{P} = r dt$

$\int \frac{dP}{P} = \int r dt$

$\ln{P} = rt + K$

Applying the exponential to both sides:

$P(t) = Ke^{rt}$

In which K is the initial population.

At time t = 0 hours, the population is 300.

This means that K = 300. So

$P(t) = 300e^{rt}$

At time t = 24 hours, the population is 1000.

This means that P(24) = 1000. We use this to find the growth rate. So

$P(t) = 300e^{rt}$

$1000 = 300e^{24r}$

$e^{24r} = \frac{1000}{300}$

$e^{24r} = \frac{10}{3}$

$\ln{e^{24r}} = \ln{\frac{10}{3}}$

$24r = \ln{\frac{10}{3}}$

$r = \frac{\ln{\frac{10}{3}}}{24}$

$r = 0.05$

So

$P(t) = 300e^{0.05t}$

At what time t is the population 500?

This is t for which P(t) = 500. So

$P(t) = 300e^{0.05t}$

$500 = 300e^{0.05t}$

$e^{0.05t} = \frac{500}{300}$

$e^{0.05t} = \frac{5}{3}$

$\ln{e^{0.05t}} = \ln{\frac{5}{3}}$

$0.05t = \ln{\frac{5}{3}}$

$t = \frac{\ln{\frac{5}{3}}}{0.05}$

$t = 10.22$

The population is of 500 after 10.22 hours.

7 0

2 years ago

What are the missing letters in the pattern? kr, np, _____ , tl , wj, ...

maria [59]

Your answer is , qn.

4 0

2 years ago

Tommy has 5 jars of marbles each jar is 2/3

tatyana61 [14]

Answer:

7.5

Step-by-step explanation: First divided 5 divided by 2/3 and then you will get 7.5 can I get my brainllest

8 0

2 years ago

Read 2 more answers

A 31 cm core sample from a large tree is to be divided into five pieces. Two of the pieces will be one length, and the other thr

Sav [38]

Answer:

the answer is c

Step-by-step explanation:hope this helped!

8 0

2 years ago