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Keith_Richards [23]
2 years ago
6

Which of the following is an extraneous solution of √4x+41 = x+5?

Mathematics
1 answer:
dolphi86 [110]2 years ago
7 0

Answer:

x=-8

Step-by-step explanation:

on squaring both sides

either x-2=0  or  x+8=0

either x=2 or x=-8

Putting x=2 in original equation, we get

7=7 hence, it is not an extraneous solution

Putting x=-8 in original equation

i.e. 3=-3

Hence, x=-8 is an extraneous solution (since it doesn't satisfy the original equation)

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Help me please,Thanks
Ugo [173]

The answer to this question would be the last choice (this data has no outliers)

Explanation: The reason for this is that an outlier is basically any number or value that kind of stands off or is very separated from a set of data.

For example, if I had the numbers 1,2,3,2,9,5,7,5,8,4 and 47, 47 would definitely be an outlier as it's significantly greater than the rest of the data.

The data shown in your question doesn't vary a lot though, (it's contained within a range of 65 and 80- no number seems to be radically different).  

5 0
2 years ago
What's the explicit formula for 5,10,15,20,25,30
vivado [14]

Answer:

a_{n} = 5n

Step-by-step explanation:

There is a common difference d between consecutive terms

d = 10 - 5 = 15 - 10 = 20 - 15 = 25 - 20 = 30 - 25 = 5

This indicates the sequence is arithmetic with explicit formula

a_{n} = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = 5 and d = 5 , then

a_{n} = 5 + 5(n - 1) = 5 + 5n - 5 = 5n

4 0
2 years ago
Which statements explain that the table does not represent a probability distribution? Select each correct answer.
12345 [234]

Answer:

Step-by-step explanation:

The Selected Correct answers were

A. The probability 4/3 is greater than 1.

 

D. The sum of the probabilities is 8/3.

3 0
3 years ago
Read 2 more answers
A frog eats 8 flies in 4 minutes. How many flies per minute does the frog eat
Liono4ka [1.6K]

Answer:

2 per minute

Step-by-step explanation:

Because 8 divided by 4 is 2.

3 0
3 years ago
What does x equals to if 3( x + 7 ) =57
zepelin [54]

3(x + 7) = 57 |÷3

x + 7 = 57/3

x + 7 = 19 |-7

x = 19 - 7

x = 12

7 0
2 years ago
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