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Sindrei [870]
3 years ago
14

Please help me the venn diagram is wrong too im confused on how to do this :(((

Mathematics
1 answer:
Kisachek [45]3 years ago
8 0

Answer:

probability of chosing a student that has a cat and a dog is 9/25

Step-by-step explanation:

And yes the Venn diagram is wrong because you forgot to subtract 9 from 15 and 16

This makes it

[ 3 ( 6 ( 9 ) 7 ) ]

3 + 6 + 9 + 7 = 25

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Identify the recursive formula for the following sequence: 8, 26, 80, 242, . . .
AVprozaik [17]

Answer:

Recursive formula is a_n = (a_{n-1} *3) + 2

Step-by-step explanation:

8, 26, 80, 242, . . .

8 is the first term

To get 26 we multiply 8 by 3  and then add 2

8*3 = 24 + 2= 26

26 * 3= 78+2 = 80

80*3 = 240 + 2 = 242

So to get next term we multiply the previous term by 3  and then we add 2

a_n = (a_{n-1} *3) + 2

7 0
3 years ago
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Answer:

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Step-by-step explanation:

3 0
3 years ago
Four times a number was 22 greater than twice the same number. What was the number?
Setler [38]

Answer: 11

Step-by-step explanation:

Set up an equation

Based on the question, we can determine that 4x = 22 + 2x where x in is the number

"Four times a number" -> <u>4x</u>

"was" -> <u>=</u>

"22 greater than" -> <u>22 +</u>

"twice the same number" -> <u>2x</u>

Put the underlined parts together to get <u>4x = 22 + 2x</u>

Solve equation

Rearrange/collect like terms to solve for x by subtracting 2x from both sides

4x = 22 + 2x

2x = 22

Solve for x by dividing each side by 2

2x = 22

x = 11

Final Answer

x = 11

8 0
3 years ago
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A supercomputer lab in Japan has calculated <u>4 trillion</u> digits of pi,
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With higher mathematics, it's possible to <u>prove</u> that pi never ends.
So, no matter how many digits somebody gives you for pi, there are
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3 years ago
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