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3 years ago

PLEASE HELP GOTTA GO TO CROSS COUNTRY PRACTICE PLEASE AND THANKS MARK YOU BRAINLIEST

Mathematics

1 answer:

marishachu [46]3 years ago

8 0

Answer:

1. $13.78

2. 5.3lbs

3. $4.56

4. 30.44lbs

5. $32.07

Step-by-step explanation:

Simple addition and subtraction.

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Determine whether the following probability experiment represents a binomial experiment and explain the reason for your answer.S

kozerog [31]

Answer:

B., C. and D.

Step-by-step explanation:

Seven cards are selected from a standard 52-card deck without replacement. The number of diamonds selected is recorded. Does the probability experiment represent a binomial experiment?

The criteria for a Binomial experiment are the following.

1. Fixed number of trials. (Not met)

The text doesn't specify the sample size (it says that seven cards are selected but doesn't specify how many times will seven cards be drawn), this number must be established before starting the experiment.

2. There are only two possible outcomes for each trial. (Not met)

"Draws seven cards and records the number of diamonds" so the outcome of the trial can be

"No diamonds"

"1 diamond card"

"2 diamond cards"

"3 diamond cards"

...

"7 diamond cards"

Simply speaking, it has two outcomes if you can phrase it as a yes or no question. That is not the case in this experiment.

3. Each trial is an independent event. (Not met)

4. The probability of success in the same from one trial to another. (Not met)

Two events are independent if the occurrence of one doesn't affect the probability of occurrence of the next one.

Since the cards are selected without replacement, at each repetition of the trial the probability of the next trial is modified. Therefore, the trials are dependant and the probability of success is modified after each trial.

None of the criteria for a Binomial experiment are met, this is not a Binomial experiment.

I hope you have a SUPER day!

3 0

4 years ago

Graph the image of the given triangle under a dilation with a scale factor of 1/3 and center of dilation (0, 0) .

Vinil7 [7]

We are given : A scale factor of 1/3 and center of dilation (0, 0).

For the given image, the coordinates of the vertices of the triangle are

(0,9), (0,0) and (-6,0).

We can apply formula for finding new coordinates:

Scale factor * [Vertex coordinates of the given image - Coordinate of Center of dilation] +Coordinate of Center of dilation.

Applying same formula to each coordinates we are given.

(0,9) --> 1/3 [ (0,9) - (0,0) ] + (0,0) ] = 1/3 [ (0,9)] +(0,0) = (0,3).

(0,0) --> 1/3 [ (0,0) - (0,0) ] + (0,0) ] = 1/3 [ (0,0] +(0,0) = (0,0).

(0,9) --> 1/3 [ (-6,0) - (0,0) ] + (0,0) ] = 1/3 [ (-6,0)] +(0,0) = (-2,0).

Now, we can plot those resulting coordinates on the graph and form a triangle.

6 0

3 years ago

Read 2 more answers

Ryan has a bank account balance of --$17.62. As soon as he realizes this, he deposits $26.50 in the account. What is Ryan's bank

Andrews [41]

The final bank balance is the sum of the initial balance and the amount of deposit made, hence amount in Ryan's account after the deposit will be $8.88

Initial bank balance = - $17.62

Amount deposited = $26.50

Final balance in account will be :

Initial balance + Amount of deposit made

(-17.62) + $26.50 = $8.88

Therefore, the amount in Ryan's bank account after the deposit is made will be $8.88

Learn more :brainly.com/question/18109354

7 0

3 years ago

What decimal is equivalent to 1.25%

matrenka [14]

The answer is 0.0125

5 0

3 years ago

Read 2 more answers

Eight times a number plus five times another number is -13. The sum of the number is 1. What are the nymber?

azamat

Answer:

x=-6 y=7

Step-by-step explanation:

8x+5y=-13; x+y=1

Isolate x and substitute

(-13-5y)/8 +y=1

Isolate y

y=7

substitute y=7

(-13-5*7)/8=-6

7 0

3 years ago