3 years ago

Which choice is the solution to the inequality below? 2x < 20

1 answer:

7 0

X less than 10 is the answer I think

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xz_007 [3.2K]

Yeah, x= 7/2 and y= -5/2
Please mark as brainliest and I hope this helps

5 0

2 years ago

fiasKO [112]

Start with

$1=\dfrac{1}{n^2}+\dfrac{n^2-4n-5}{3n^2}$

We observe that both fractions are not defined if $n=0$ . So, we will assume $n \neq 0$ .

We multiply both numerator and denominator of the first fraction by 3 and we sum the two fractions:

$1=\dfrac{3}{3n^2}+\dfrac{n^2-4n-5}{3n^2} = \dfrac{n^2-4n-2}{3n^2}$

We multiply both sides by $3n^2$ :

$n^2-4n-2=3n^2$

We move everything to one side and solve the quadratic equation:

$2n^2+4n+2=0 \iff 2(n^2+2n+1)=0 \iff 2(n+1)^2=0 \iff n+1=0 \iff n=-1$

We check the solution:

$1=\dfrac{1}{1}+\dfrac{1+4-5}{3} \iff 1 = 1+0$

which is true

8 0

2 years ago

Evgen [1.6K]

Answer:

Step-by-step explanation:

5 0

2 years ago

Nesterboy [21]

X=1, x=-7 would be the correct answer.

5 0

2 years ago

Tamiku [17]

Answer:

take the population mean divided by four

Step-by-step explanation:

4 0

2 years ago