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andreyandreev [35.5K]
3 years ago
12

Simplifying rational expressions Help

Mathematics
2 answers:
SCORPION-xisa [38]3 years ago
6 0

{( \frac{ {x}^{ - 4} y}{ {x}^{ - 9} {y}^{5}  } ) }^{ - 2}  =  \frac{ {y}^{8} }{ {x}^{10} }

Eduardwww [97]3 years ago
6 0

Answer:

Choice A is correct.

Step-by-step explanation:

We have given the expression :

(x⁻⁴y/x⁻⁹y⁵)⁻²

We have to simplify it.

As we know that, a⁻¹ = 1/a

Apply it to the expression we get,

(x⁻⁹y⁵/x⁻⁴y)²

applying  the whole power 2 to the  nominator and the denominator  and the nominator.

(x⁻⁹y⁵)²/(x⁻⁴y)²

ₓ⁻¹⁸y¹⁰/x⁻⁸y²

x⁻¹⁰y⁸

y⁸/x¹⁰ is the simplification.

Choice A is correct.

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Use factoring to solve <br> 3x^2-11x-6=0
Zielflug [23.3K]

Answer:

x = -0.62 and x = 4.29

These values are approximations !

Step-by-step explanation:

You can not use Factoring to solve this equation. Perhaps you did not use the exact notation as in the original question?

Anyway, to solve it, you can still use the ABC formula.

3x²-11x-6=0

a = 3

b =-11

c = -6

x = [11 + √{121 -4(3 *-6)} ]/ 2*3

x = [11 + √{121 -4(-24)} ]/ 6

x = [11 + √{121 + 96} ]/ 6

x = [11 + √{217} ]/ 6

x = 4.29 This is an approximation !

x = [11 - √{121 -4(3 *-6)} ]/ 2*3

x = [11 - √{121 -4(-24)} ]/ 6

x = [11 - √{121 + 96} ]/ 6

x = [11 - √{217} ]/ 6

x = -0.62 This is an approximation !

extra: see the graph.

4 0
3 years ago
What triangle congruence theorem is needed?
slava [35]
Side side side
**************************************************************


3 0
3 years ago
Which of the following tables show a rate greater than 1 gallon per minute HELP ME ASAP I NEED THIS QUICK
ziro4ka [17]

Answer:

Step-by-step explanation try b:

3 0
3 years ago
Solve for m<br><br> M/4 - 7= 3
Leokris [45]

Answer:

40

Step-by-step explanation:

3+7=10

10x4=40

40/4-7=3

3 0
3 years ago
A full bottle holds 1/4 gallon of milk. If 5/7 of the milk has been poured out, how much milk is left in the bottle?
miss Akunina [59]

The amount of milk left in the bottle is \frac{x}{28}

<u>Explanation:</u>

Let x be the volume of the bottle.

According to the question,

Milk inside the bottle = \frac{1}{4} x

AMount of milk poured out = \frac{5}{7} X \frac{1}{4} x\\\\

                                          = \frac{5}{28} x

Amount left in the bottle = \frac{1}{4} x - \frac{5}{28}x

                                       =\frac{7x - 5x}{28} \\\\= \frac{2x}{28} \\\\=\frac{x}{28}

Therefore, amount of milk left in the bottle is \frac{x}{28}

4 0
4 years ago
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