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3 years ago

3(4x + 2) Pleaseee helppppp meeeeeee

Mathematics

1 answer:

zlopas [31]3 years ago

5 0

Answer:

12x + 6

Step-by-step explanation:

3(4x + 2)

you distribute the 3 to 4x and 2

12x + 6

hope this helps

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A recent report stated "Based on a sample of 170 truck drivers, there is evidence to indicate that, on average, independent truc

Aliun [14]

Answer:

The given statement describe inferential statistics.

Step-by-step explanation:

Descriptive Statistic:

It helps us to summarize a given data set.
It could describe the entire population or a sample from the population.
There are two types of descriptive measures: measures of central tendency and measures of variability
Central Tendency: Mean, mode, Median
Measure of Viability: Standard Deviation, Variance, Range, Interquartile range

Inferential Statistic:

It s the process of estimating population parameter with the help of a sample from the population.
A random sample from the population is used to describe the population with the help of sample statistic.

Given Scenario:

"Based on a sample of 170 truck drivers, there is evidence to indicate that, on average, independent truck drivers earn more than company-hired truck drivers."

Thus, this is an example of a inferential statistics as a sample was used to estimate the population.

Here,

Sample:

Sample of 170 truck drivers

Population:

All truck drivers.

With the help of a sample, we approximated the population, thus, this statement describe inferential statistics.

8 0

3 years ago

Guys, this is important!! My assignment is worth 100 points. (not the question but the assignment!) Solve this graph for me and

galben [10]

Answer:

I think it goes like this : 20:4=5 so there's five monsters in the room

Step-by-step explanation:

if that's the case of this question it should go like this:

9(rooms)×5(monsters per room)= 45 monsters

30(monsters):5(monsters per room)=6 rooms

13(rooms)×5(monsters per room)=65 monsters

35(monsters):5(monsters per room)=7 rooms

I hope you do well in your assignment.

I hope I helped at least a little!

8 0

3 years ago

Customers arrivals at a checkout counter in a department store per hour have a Poisson distribution with parameter λ = 7. Calcul

IgorLugansk [536]

Answer:

(1)14.9% (2) 2.96% (3) 97.04%

Step-by-step explanation:

Formula for Poisson distribution: $P(k) = \frac{\lambda^ke^{-k}}{k!}$ where k is a number of guests coming in at a particular hour period.

(1) We can substitute k = 7 and $\lambda = 7$ into the formula:

$P(k=7) = \frac{7^7e^{-7}}{7!}$

$P(k=7) = \frac{823543*0.000911882}{5040} = 0.149 = 14.9\%$

(2)To calculate the probability of maximum 2 customers, we can add up the probability of 0, 1, and 2 customers coming in at a random hours

$P(k\leq2) = P(k=0)+P(k=1)+P(k=2)$

$P(k\leq2) = \frac{7^0e^{-7}}{0!} + \frac{7^1e^{-7}}{1!} + \frac{7^2e^{-7}}{2!}$

$P(k \leq 2) = \frac{0.000911882}{1} + \frac{7*0.000911882}{1} + \frac{49*0.000911882}{2}$

$P(k\leq2) = 0.000911882+0.006383174+0.022341108 \approx 0.0296=2.96\%$

(3) The probability of having at least 3 customers arriving at a random hour would be the probability of having more than 2 customers, which is the invert of probability of having no more than 2 customers. Therefore:

$P(k\geq 3) = P(k>2) = 1 - P(k\leq2) = 1 - 0.0296 = 0.9704 = 97.04\%$

4 0

3 years ago

Find the y-intercept of the line on the graph.

BARSIC [14]

It's a little hard to see, but I'm almost positive the y intercept is -1.
Remember, the y intercept is wherever the line intercepts in the y axis 0.

Good luck my man.

5 0

3 years ago

Read 2 more answers

Sally must have at least $200 in her savings account to avoid a

xxMikexx [17]

Answer:

675$

Step-by-step explanation:

got it right

7 0

2 years ago