MATHEMATICS HIGH SCHOOL

There are 15 cards, numbered 1 through 15. If you pick a card, what is the probability that you choose an odd number or a two?A)
2
3

B)
3
5


C)
8
15


D)
8
225

Answers

Answer 1
Answer:

Answer:

Option B

Step-by-step explanation:

Given that the 15 cards are numbered 1 to 15.

A card is picked at random.  We have to find the probability that the card is odd or two

Let A - selected card is odd

B - selected card is 2

A and B are mutually exclusive

Hence P(AUB) = P(A)+P(B)

Since there are 1,3....15 i.e. 8 odd numbered cards

P(A) = 8/15

P(B) = 1/15 (since there is only one two)

Thus required prob = P(AUB) = 8/15+1/15

=9/15

=3/5

Hence option B
Answer 2
Answer: There are 8 odd number between 1 and 15 (1,3,5,7,9,11,13,15), so the probability of choosing an odd number is (8)/(15).

The probability of choosing 2 is (1)/(15).

So, the overall probability is equal to (8)/(15)+(1)/(15)=(9)/(15)=(3)/(5)

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You need to put your reindeer, Rudy, Ezekiel, Gloopin, Bloopin, and Prancer, in a single-file line to pull your sleigh. However, Bloopin and Rudy are fighting, so you have to keep them apart, or they won't fly. How many ways can you arrange your reindeer?

Answers

If the reindeer do not fight, there are 5!=120 ways to line them up in a straight line.
Out of these, Bloopin and Rudy are together in 4!=24 times.  Similarly Rudy and Bloopin will be together 4!=24 times.  So the number of ways they are not together is 120-24-24=72 ways.

If Bloopin and Rudy are fighting, the reindeer do not fight, there are 72 ways that you can arrange your reindeer.

What are permutations?

The different arrangements which can be made out of a given number of objects by taking out some or all at a time are called permutations.

If Bloopin and Rudy are fighting, the reindeer do not fight,

then there are 5! = 120 ways

Out of these, Bloopin and Rudy are together in 4! = 24 times.  

Similarly, Rudy and Bloopin will be together 4! = 24 times.  

So the number of ways they are not together

120-24-24 = 72 ways.

Learn more about permutations;

brainly.com/question/1216161

The multiplication property of equality could be used to solve which of the following equations?(x + 2)(x - 3) = 0
m + 7 = -12
b ÷ (-2) = 18
-3 + y = 7

Answers


b ÷ (-2) = 18
hope it helps
well
first one doesn't need that property
2nd one needs subtraction property of equality
third one can use it
fourth one needs addition property of equality


3rd one is answer
b/-2=18 is answer

Solve [4x +2] =6
Select one:
O a. 1
b. 2
O c. 1 or -2
O d. -1 or 2​

Answers

Answer:

x=1

Step-by-step explanation:

Steps:

1: Step 1: Subtract 2 from both sides.

4x+2−2=6−2

4x=4

2: Step 2: Divide both sides by 4.

4x4=44x=1

Answer: x=1

Hope this helps.

Answer:

1

Step-by-step explanation:

Given expression:

4x+2=6

Bringing 2 to the other side, it becomes negative..

4x=6-2 = 4

4x=4

again 4 brought to rhs n divided..

x=4/4

x= 1

So the correct option is (a)

Penny works at a localamusement park.
She earns $9.80 per hour.
She is also paid $7.00 for
meals and $3.00 for
transportation each day.
Last Friday, Penny earned
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Answers

Answer:Penny worked 8 hours on Friday.

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A number is chosen at random from 1 to 10. What’s the probability of selecting a odd number

Answers

Answer:

There is a 50% chance of selecting an odd number.

Step-by-step explanation:

Total number of possibilities = 10.

We want to find Probability of selecting odd:

Favourable possibilities are:

1 or 3 or 5 or 7 or 9. (Total 5 possibilities).

Therefore Probability = 5 / 10 = 1/2 or 50%.

Answer: 1/2

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Answers

-37 n = -56
n=-56/-37
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