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2 years ago

I could use some help on this. thanks

Mathematics

2 answers:

AleksAgata [21]2 years ago

5 0

Answer: is B

Step-by-step explanation:

Dennis_Churaev [7]2 years ago

5 0

Answer:

1 to 1?

Step-by-step explanation:

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Simplify the rational expression. state any restrictions on the variable. n^4-11n^2+30/n^4-7n^2+10

Andrej [43]

For this case we have the following expression:
 $\frac{n ^ 4-11n ^ 2 + 30}{ n ^ 4-7n ^ 2 + 10} 

$
 We are going to make the following change of variables:
 $x = n ^ 2
$
Rewriting the expression we have:
 $\frac{(x ^ 2-11x + 30)}{(x ^ 2-7x + 10)} 

$
Factoring the expression we have:
 $\frac{(x-5) (x-6)}{(x-5) (x-6)} 
$
Canceling similar terms we have:
 $\frac{x-6}{x-2} 
$
Returning the change we have:
 $\frac{n ^ 2-6}{n ^ 2-2} 

$
 The resctrictions of the function are those that make the denominator equal to zero.
We have then:
 $n ^ 2-2 = 0

n = +/- \sqrt{2} 
$
 Answer:
The simplified expression is:
 $\frac{n ^ 2-6}{n ^ 2-2}$
The restrictions are:
 $n = \sqrt{2} 
$
$n = - \sqrt{2}$

7 0

2 years ago

Plzzzzz hellllppppp!!!!

Mashutka [201]

Y=x3 +2 is the answer

8 0

3 years ago

7m+9, for m=2. What's the value of this equation

Vinil7 [7]

Answer:

replace m with 2 and do 7(2)+9

5 0

3 years ago

He sum of two consecutive integers is â71â71. find the two integers

Crank

The two consecutive integers can be represented by x and x+1.

x+(x+1)=71

Combine like terms
2x+1=71

Subtract 1 from both sides
2x=70

Divide both sides by 2
x=35

Final answer: 35, 36

8 0

2 years ago

What is the decimal that is 1/10 of 0.9

oksian1 [2.3K]

.09:
"of" means that you have to multiply.

1/10 is equal to .1

If you multiply 0.1 by 0.9 you will get .09

6 0

3 years ago