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3 years ago

If a die is rolled one time, what is the probability of getting a 4

Mathematics

2 answers:

koban [17]3 years ago

8 0

Answer: 16.7%

Step-by-step explanation: To find the probability of rolling a 4 on a dice, remember that there are 6 possibilities of rolling a number.

One way to think about it is that it's certain that one of those six sides will land facing upwards which is a probability of 1 or 100%.

Since only one side can face upwards for a given role, we have to divide up that value among all the possibilities. Let's divide 1 by the number of sides on the dice.

1 ÷ 6 = 0.167 or 16.7%

This means that it would not be likely to role a 4, but it would be just as likely as rolling any other number.

Therefore, the probability of rolling a 4 is 16.7%.

BaLLatris [955]3 years ago

5 0

Answer:

1/6

Step-by-step explanation:

You have one die, with one 4 and six sides. The probability of getting a 4 with one roll is 1/6.

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Joshua made note of all the bicycles and cars he could see parked or locked on a

Mars2501 [29]

Answer:

Step-by-step explanation:

11*4=44

6*2=12

44+12=56

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3 years ago

You can read 45 pages of your new book in 2 hours. how much an you read in 3

erastova [34]

Answer:

67.5 pages

Step-by-step explanation:

45 divided by 2 is 22.5, so you would do 3x22.5=67.5

Hope this helped!

3 0

3 years ago

the diameters of Douglas firs grown at a Christmas tree farm are normally distributed with a mean of 4 inches and a standard dev

aksik [14]

Answer:

Proportion of the trees will have diameters between 2 and 6 inches = 0.8164

Step-by-step explanation:

Given -

Mean $(\nu )$ = 4

Standard deviation $(\sigma )$ = 1.5

Let X be the diameter of tree

proportion of the trees will have diameters between 2 and 6 inches =

$P(2< X< 6)$ = $P(\frac{2 - 4 }{1.5}< \frac{X - \nu }{\sigma}< \frac{6 - 4 }{1.5})$

= $P(\frac{-2 }{1.5}< Z< \frac{2 }{1.5})$ Put [ $Z = \frac{X - \nu }{\sigma}$ ]

= $P(-1.33< Z< 1.33)$

= $(Z< 1.33) - (Z< -1.33)$

= .9082 - .0918

= 0.8164

6 0

3 years ago

What are the solutions of 4x2 + x = -3? (5 points) and x2 - 7x = -12 (5 points)

Yuki888 [10]

4x^2 + x + 3 = 0

x = [-1 +/- sqrt (1^2 - 4 * 4 * 3)] / 8 = - 1 +/- sqrt ( --47) / 8

= ( - 1 +/- sqrt47i) / 8 = -0.125 + 0.857i , -0.125 - 0.857i

7 0

3 years ago

Read 2 more answers

What is a factor of 15xy-45x-6y+18? A. Y-2 B. 5x-3 C. 5x-2 D. Y-6

AfilCa [17]

Factor the following:
15 x y - 45 x - 6 y + 18
Factor 3 out of 15 x y - 45 x - 6 y + 18:
3 (5 x y - 15 x - 2 y + 6)
Factor terms by grouping. 5 x y - 15 x - 2 y + 6 = (5 x y - 2 y) + (6 - 15 x) = y (5 x - 2) - 3 (5 x - 2):
3 y (5 x - 2) - 3 (5 x - 2)
Factor 5 x - 2 from y (5 x - 2) - 3 (5 x - 2):
Answer: 3 (5 x - 2) (y - 3)

8 0

3 years ago

If a die is rolled one time, what is the probability of getting a 4​

If a die is rolled one time, what is the probability of getting a 4