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3 years ago

Any answers help please! show your work

Mathematics

1 answer:

DiKsa [7]3 years ago

4 0

1. -√8, -2.1, 3/2, 12/6, 4

sorry man I'm tired but here's ya first set of answers

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Which figure is described below?

yanalaym [24]

Answer:

It’s a line

Step-by-step explanation:

5 0

3 years ago

What is the not number in this sequence?

Oksanka [162]

The answer is: "123454321"
Hope this helps!

8 0

3 years ago

A manager randomly selected 25 large cash transactions at a bank that were made in January. The manager then carefully tracked d

Dmitriy789 [7]

Answer:

0.4629 = 46.29% probability that the manager finds more than two such transactions

Step-by-step explanation:

For each transaction, there are only two possible outcomes. Either there is a procedural error, or there is not. The probability of a procedural error on a transaction is independent of any other transaction. This means that we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

A manager randomly selected 25 large cash transactions at a bank that were made in January.

This means that $n = 25$

The chance for a procedural error is 10%

This means that $p = 0.1$

What is the probability that the manager finds more than two such transactions?

This is:

$P(X \geq 2) = 1 - P(X < 2)$

In which

$P(X < 2) = P(X = 0) + P(X = 1) + P(X = 2)$

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 0) = C_{25,0}.(0.1)^{0}.(0.9)^{25} = 0.0718$

$P(X = 1) = C_{25,1}.(0.1)^{1}.(0.9)^{24} = 0.1994$

$P(X = 2) = C_{25,2}.(0.1)^{2}.(0.9)^{23} = 0.2659$

$P(X < 2) = P(X = 0) + P(X = 1) + P(X = 2) = 0.0718 + 0.1994 + 0.2659 = 0.5371$

$P(X \geq 2) = 1 - P(X < 2) = 1 - 0.5371 = 0.4629$

0.4629 = 46.29% probability that the manager finds more than two such transactions

4 0

3 years ago

Mr.jonson sells erasers for $3 each.He sold 96 erasers last week and he sold 204 erasers this week.About how much more money did

7nadin3 [17]

Answer: About $300

Step-by-step explanation:

1. To solve this problem and estimate how much more money Mr. Johnson made this week (which you can call x) you must apply the proccedure shown below:

- Round the number of erasers sold:

96 erasers≈100 erasers

204 erasers≈200 erasers

- The amount of money made last week is:

$\$3*100=300\$$

- The amount of money made this week is:

$\$3*200=600\$$

- Now, you must subtract the quantities shown above, then you obtain:

$m=\$600-\$300\\m=\$300$

7 0

4 years ago

Write the coordinates of the vertices after a reflection across the line y = 2.

rewona [7]

P' = (-1, 8) (the x coordinate stays the same and the y coordinate = (distance between -4 and 2) + 2 = 6+2 = 8).

using the same process:-

Q' = (4, 8)

R' = (8, 5)

S' = (3, 5)

4 0

4 years ago