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11 months ago

7

Rolling a 6-sided die and counting the number of each outcome that occurs is a binomial random vanable True or Fallber? Which op

tion gives the most accurate respon A False, there are more than 2 options being recorded OB. False, the geometric distribution would be more appropriate here since die rolls are not independent from roll to roll OC. False, the probability of success changes from one roll to another OD. True, probabilities remain the same from roll to roll, and we are counting the *******

1 answer:

oee [108]11 months ago

7 0

A.

Binomial random variables have 2 outcomes

die rolls are independent of each other

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The doubling period of a bacterial population is 20 20 minutes. At time t = 100 t=100 minutes, the bacterial population was 9000

Nuetrik [128]

Answer:

The initial population was 2810

The bacterial population after 5 hours will be 92335548

Step-by-step explanation:

The bacterial population growth formula is:

$P = P_0 \times e^{rt}$

where P is the population after time t, $P_0$ is the starting population, i.e. when t = 0, r is the rate of growth in % and t is time in hours

Data: The doubling period of a bacterial population is 20 minutes (1/3 hour). Replacing this information in the formula we get:

$2 P_0 = P_0 \times e^{r 1/3}$

$2 = e^{r \; 1/3}$

$ln 2 = r \; 1/3$

$ln 2 \times 3 = r$

$2.08 \% = r$

Data: At time t = 100 minutes (5/3 hours), the bacterial population was 90000. Replacing this information in the formula we get:

$90000 = P_0 \times e^{2.08 \; 5/3}$

$\frac{9000}{e^{2.08 \; 5/3}} = P_0$

$2810 = P_0$

Data: the initial population got above and t = 5 hours. Replacing this information in the formula we get:

$P = 2810 \times e^{2.08 \; 5}$

$P = 92335548$

3 0

3 years ago

How do you get why by itself in this equation? 4x+5y=5

Alja [10]

Answer:

first we get y on one side by itself.

4x+5y=5

we'll move x to the other side.

4x-4x+5y=5-4x

simplify.

5y=5-4x

now we get rid of the coefficient on y.

5y/5=(5-4x)/5

simplify.

y=5/5-4x/5

y=1- $\frac{4}{5}x$

The answer is $y=1-\frac{4}{5}x$

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2 years ago

Interpreting an Expression

fenix001 [56]

Answer:

1x5

Step-by-step explanation:

I dont know

3 0

3 years ago

brainly hdd and ram memory both tests both come back with positive old tower pc doesn't always turn on and randomly

mash [69]

The correct option is 4. PSU.

The hardware part that would be checked next is PSU.

<h3>What is Power Supply Unit PSU?</h3>

An internal piece of IT hardware is known as a power supply unit (PSU). Despite their name, power conversion devices, or PSUs, do not really supply power to systems.

Some key features of PSU are-

A power supply specifically transforms alternating high voltage current (AC) to direct current (DC) and regulates the DC output voltage to the precise tolerances needed for contemporary computing components.
There is, however, a PSU substitute that may be utilized in specific circumstances.
Electrical power can be transported inside network cables using Power over Ethernet (PoE), freeing the device from being bound to an outlet.
Because PoE can deliver wireless access points wherever it is most convenient and uses less room for wiring, it is perfect for systems that need greater flexibility.

To know more about power supply unit, here

brainly.com/question/24249197

#SPJ4

The correct question is-

A customer complains that his old tower PC doesn't always turn on and randomly shut off for hours. The HDD and RAM both tests both come back with positive results.

What hardware part would you check next?

NIC
EXT-USB HDD
PS/2
PSU
SSD

6 0

2 years ago

If cot theta= 4/3, find csc theta

Marrrta [24]

Answer: Option d.

Step-by-step explanation:

The trigonometric identity needed is:

$csc^2\theta=cot^2\theta+1$

Knowing that $cot\theta=\frac{4}{3}$ :

Substitute it into $csc^2\theta=cot^2\theta+1$ :

$csc^2\theta=(\frac{4}{3})^2+1$

Simplify the expression:

$csc^2\theta=(\frac{4}{3})^2+1\\\\csc^2\theta=\frac{16}{9}+1\\\\csc^2\theta=\frac{25}{9}$

Solve for $csc\theta$ . Apply square root at both sides of the expression:

$\sqrt{csc^2\theta}=\±\sqrt{\frac{25}{9}}$

$csc\theta=\frac{5}{3}$

8 0

2 years ago