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marta [7]
3 years ago
15

Which one is correct?

Mathematics
2 answers:
garik1379 [7]3 years ago
6 0

Answer:

(x+4)^2=4

Step-by-step explanation:

x^2+8x+12=0\\\implies (x^2+8x+16)+12=16\\\implies (x+4)^2=16-12\\\implies \boxed{(x+4)^2=4}

tiny-mole [99]3 years ago
5 0

Answer:

(x +4)^2 = 4

Step-by-step explanation:

if we add 4 to the expression x^2 + 8x + 12 we will have a perfect square which is shown as (x +4)^2

so (x +4)^2 = 4 is equivalent to the expression x^2 + 8x + 12

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never [62]
I’m pretty sure it’s 7/16 Goodluck! :)
4 0
3 years ago
Hep me simplify this, please!!
Elis [28]
Divide the exponent inside the "√" by the exponent outside:
12/4=3, 16/4=4
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B is the answer. 
6 0
4 years ago
Tere<br> 0.73<br> Into a fraction
chubhunter [2.5K]

Answer:

73/100

Step-by-step explanation:

You cant simplify it

6 0
3 years ago
For each value of 1 ≤ n ≤ 100, the highest common factor of 8n + 3 and 5n + 4 is written down. What is the sum of these values
DerKrebs [107]

Let gcd(8n + 3, 5n + 4) = d

⟹d|8n+3∧d|5n+4

⟹d|8(5n+4)−5(8n+3)

⟹d|17

Therefore highest common factor of 8n + 3 and 5n + 4 is either 1 or 17 for all n

learn more of gcd here brainly.com/question/25550841

#SPJ9

6 0
2 years ago
How many positive integers less than 500 have an odd number of factors?
Tema [17]

Answer:

22

Step-by-step explanation:

Remark

Very nice little problem.

At first you think you need to go through the entire number system from 1 to 500. For example, you could do 12 as 1 2 3 4 6 12 So 12 does not add to the number of integers that have an odd number of factors.

But along the way if you check all the factors of the integers from 1 to 12, you notice something very odd. (No pun intended).

1 only has 1 factor which is odd (not even).

4 has 3 factors 1 2 4 which is odd.

9 has 3 factors 1 3 9 which is odd.

It turns out that there are 22 numbers from 1 to 500 that have an odd number of factors. They are the perfect squares between 1 and 500

Note

The factors of an integer include 1 and the integer itself

As a conclusion, try 36

1 2 3 4 6 9 12 18 36  There's 9 factors which is odd. So only the perfect squares have an odd number of factors.

5 0
3 years ago
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