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3 years ago

10

What is the index?

qrt[5]{7x} " alt=" - 12 \sqrt[5]{7x} " align="absmiddle" class="latex-formula">

2 answers:

Lyrx [107]3 years ago

7 0

12(7x)^1/5

This is simplification into index form, the index itself is the 5th root of 7x if you just wanted to state what it is

klemol [59]3 years ago

6 0

The correct answer is -12×(7x) 1/5 .

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siniylev [52]

The correct answer is A.

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4 years ago

From MATH workbook.

bixtya [17]

Step-by-step explanation:

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X to the third power = 64/27

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Answer:

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3 years ago

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X-y=4 and 1/2x+1/2y=18

cluponka [151]

value of x = 20 and value of y=16

Solution set=(20,16)

Step-by-step explanation:

We need to solve system of equations:

$x-y=4\\\frac{1}{2}x+ \frac{1}{2}y=18$

Let:

$x-y=4\,\,\,eq(1)\\\frac{1}{2}x+ \frac{1}{2}y=18\,\,\,eq(2)$

Simplifying equation 2:

$\frac{1}{2}x+ \frac{1}{2}y=18$

Taking LCM on left side:

$\frac{x+y}{2}=18$

$x+y=18*2$

$x+y=36\,\,\,eq(3)$

Adding eq(1) and eq(3)

$x-y=4\\x+y=36\\-----\\2x=40\\x=40/2\\x=20$

Putting value of x in eq(1) and finding y:

$x-y=4\\20-y=4\\-y=4-20\\-y=-16\\y=16$

So, value of x = 20 and value of y=16

Solution set=(20,16)

Keywords: System of equations

Learn more about system of equations at:

#learnwithBrainly

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4 years ago

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3 years ago

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