What is the chance of rolling a 4 with a single dice 3 times

Answers

Answer 1

Answer:
The chance of rolling a 4 is 1/6 .

If you already have one, then the chance of rolling another one is 1/6 .

If you already have two, then the chance of rolling another one is 1/6 .

So, starting from the beginning, the chance of rolling three of them
IN THREE TOSSES is

(1/6) x (1/6) x (1/6) = 1/216 = about 0.46 % .

The question actually just says "the chance of rolling a 4 three times".
If you just look at it that way, the chance could be 100% ... it doesn't
say anything about how many tosses you get, and you're just going to
keep rolling that durn cube until you get three 4's.

Answer 2

Answer: 3/18. This is because you roll a 4 3 times, and I'm assuming it's a standard 6 sided die (singular for dice). 3 x 6 = 18 and 3 x 1 = 3.

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We have two fractions, 1/6 and 3/8, and we want to rewrite them so that they have a common denominator (and whole number numerators). What numbers could we use for the denominator?

Answers

Answer:

12,24 etc

Step-by-step explanation:4 and 6 both go into 12 evenly

4*3 = 12

6*2 = 12

12 is the least common denominator

We could also use 24

4*6 = 24

It is a common denominator, but not the least common denominator

We can use any multiple of 12

LM is the midsegment of trapezoid ABCD. AB= x + 8, LM = 4x + 3, and DC = 187. What is the value of x?

Answers

Length of the midsegment of trapezoid:
LM = ( AB + DC ) / 2
4 x + 3 = ( x + 8 + 187 ) / 2 / * 2 ( we will multiply both sides of the equation by 2 )
8 x + 6 = x + 8 + 187
8 x + 6 = x + 195
8 x - x = 195 - 6
7 x = 189
x = 189 : 7
Answer:
x = 27

A 30 gallon tub is completely full. The drain is opened and the tub begins draining at a of 1.5 gallons per minute. How long will it take the tub to completely drain?

Answers

1.5÷60=0.025 per second

30÷0.025=1200 second

1200÷60 =20 hours

20 hours

Meredith feeds her 3 dogs twice a day. How many times does she feed the dogs in 3 days?

Answers

She would feed them 6 times in 3 days.

Answer:

6 times, 3 days

Step-by-step explanation:

This is 3rd grade math...lol

The probability that Emma has heart disease is 0.6. She decides to take a test for the disease that is 80% accurate. What is the probability that Emma has heart disease and the test predicts heart disease?

Answers

Answer:

The probability that Emma has heart disease and the test predicts heart disease is:

48%

Step-by-step explanation:

Let A denote the event that Emma has a heart disease.

and B denote the event that the test predicts accurate.

Hence, A∩B denote the event that Emma has heart disease and the test predicts heart disease.

From the given equation we have:

P(A)=0.6

and P(B)=80%=0.8

As we know that event A and event B are independent.

Hence, we have:

P(A∩B)=P(A)×P(B)

⇒ P(A∩B)=0.6×0.8

⇒ P(A∩B)=0.48=48%

Hence, the probability is:

48%

0.6 x 0.8 = 12/25 The probability that Emma has heart disease and the test predicts it is 48%

A person could die if they receive the wrong type of blood.
True
False

Answers

I would say true because there has been people known to die from wrong blood type transfusion

Answer:

True dat my dudes

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