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1 year ago

Please help me do the equation and figure out the right solution. I am supposed to be correcting the one in the picture.

Mathematics

1 answer:

alexira [117]1 year ago

5 0

Answer:

The correct answer is if you want no roots in the denominator, the correct answer is $\frac{2x}{y}$ * $\sqrt[3]{2y^{2} }$

Step-by-step explanation:

The mistake is that you can't take a cube root of a square at step 3 when $y^{2}$ is taken out.

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Write the following equation in slope-intercept form. - y + 6 = 0 y = - 6/5 y = + 6 y = 5/6

irinina [24]

Answer:

y = +6

Step-by-step explanation:

-y + 6 = 0

Subtract 6 from both sides;

-y = -6

Divide both sides by -1

y = 6

3 0

2 years ago

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} 
$
$n = - \sqrt{2}$

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3 years ago

8x + 7 equals -9 solve for x

Montano1993 [528]

The answer to this equation is
x= (1/4)

8 0

3 years ago

Please help this was due yesterday!

CaHeK987 [17]

Answer:

a) <

b) <

c) >

d) <

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Step-by-step explanation:

5 0

3 years ago

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sattari [20]

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2 years ago

Read 2 more answers