Lydia tosses two six-sided number cubes.A) List the sample space.
B) What is the probability of Lydia rolling pairs of the same number?
C) What is the probability that at least one number will be a 3?

Answers

Answer 1
Answer:

b) The probability of Lydia rolling pairs of the same number is 1/6.

c) The probability that at least one number will be a 3 is 11/36

What is Probability?

Probability refers to potential. A random event's occurrence is the subject of this area of mathematics.

The range of the value is 0 to 1. Mathematics has incorporated probability to forecast the likelihood of various events.

The degree to which something is likely to happen is basically what probability means.

a) The Sample Space is

(1, 1)       (1, 2)   (1, 3)        (1, 4)         (1, 5)         (1, 6)

(2, 1)     (2, 2) (2, 3) (2, 4) (2, 5) (2, 6)

(3, 1)     (3, 2) (3, 3) (3, 4) (3, 5) (3, 6)

(4, 1)     (4, 2) (4, 3) (4, 4) (4, 5) (4, 6)

(5, 1)     (5, 2) (5, 3) (5, 4) (5, 5) (5, 6)

(6, 1)     (6, 2) (6, 3) (6, 4) (6, 5) (6, 6)

b) The probability of Lydia rolling pairs of the same number

= 6/36

= 1/6

c) The probability that at least one number will be a 3

= 11/36

Learn more about Probability here:

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Answer 2
Answer:

Answer:

Step-by-step explanation:

A) {1,2,3,4,5,6}{1,2,3,4,5,6}

B) The probability of rolling the same number is 2/12

C) the probability of one of the numbers being a three is 1/6


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Bruce is getting materials for a chemistry experiment. His teacher gives him an container that holds 0.25 liter of a blue liquid. Bruce needs to use 0.4 of this liquid for the experiment. How much blue liquid will Bruce use?

Answers

0.4\cdot0.25=0.1 \text{ l}

What is 1. Of. 70. - --------- - 10

Answers

u have to be more clear but its 700%
The answer is 700
:) ;)

If x = 3 and y = -1, then 3x2 + 2xy - 5 = ?
A: 18
B: 24
C: 12
D: 16

Answers

x = 3 , \ y = -1 \n \n 3x^2 + 2xy - 5 = 3\cdot 3^2 + 2\cdot 3\cdot (-1)-5=\n \n=3\cdot 9 -6-5=27-11=16 \n \n Answer : \ D: \ \ 16


3\cdot3^2+2\cdot3\cdot(-1)-5=27-6-5=16

anna is in a cave 40 feet below the cave entrance. She descends 13 feet, hen ascends 18 feet. Find her new position relative to the cave entrance

Answers

Answer:

35 below the cave entrance.

Step-by-step explanation:

Let the cave entrance be the level from which the positions of Anna will be covered.

Anna is 40 feet below the cave entrance.

That means her position will be considered as (-40) feet.

Then she descends 13 feet then the position of Anna will be = -40 - 13 = -53 feet

Further she ascends 18 feet so her position will be = -53 + 18 = -35 feet

Therefore, the new position of Anna is 35 below the cave entrance.

-40-13=-53
-53+18=-35
35 feet below the cave entrance

Twice a number increased by 6

Answers

Twice a number is increased to 6, the statement in numeric form is written as 2x + 6.

What is an expression?

Mathematical actions are called expressions if they have at least two terms that are related by an operator and include either numbers, variables, or both. Adding, subtraction, multiplying, and division are all reflection coefficient operations. A mathematical operation such as reduction, addition, multiplication, or division is used to integrate terms into an expression.

As per the given statement in the question,

Let the number be x.

Twice a number is 2x

And increase by 6 will be,

2x + 6

To know more about an expression:

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Step-by-step explanation:

take the unknown number as x

2 × x + 6

2x + 6

There were 70
runners to start a race. In the first half of the race,
1/5
of them dropped out. In the second half of the race,
4/7
of the remaining runners dropped out. How many runners finished the race?

Answers

Hey there! So,to do this, I would recommend making the fractions into decimals. 1/5 is equal to 0.2 so you multiply that times 70 runners . This equals 14 runners who dropped out. Subtract those who dropped out from the total and now you have 56 runners left. 4/7 as a decimal is about 0.575. Times that by 56 and you get another 32 who dropped out. You're now down to only 24 runners who finished the race.