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sergeinik [125]
3 years ago
14

Which expression is equivalent

Mathematics
1 answer:
RUDIKE [14]3 years ago
7 0

Given expression is

\sqrt[4]{\frac{16x^{11}y^8}{81x^7y^6}}

Radical is fourth root

first we simplify the terms inside the radical

\frac{x^{11}}{x^7}=x^4

\frac{y^(8)}{y^6}=y^2

So the expression becomes

\sqrt[4]{\frac{16x^4y^2}{81}}

Now we take fourth root

\sqrt[4]{16} = 2

\sqrt[4]{81} = 3

\sqrt[4]{x^4} = x

We cannot simplify fourth root (y^2)

After simplification , expression becomes

\frac{2x\sqrt[4]{y^2}}{3}

Answer is option B


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A sells and article to B at a profit of 10%,B sells it to C for rs577.50 at a profit of 5%.How much did it cost for A?
densk [106]

Answer:  $500

<u>Step-by-step explanation:</u>

A sells to B at a profit of 10%:    1.10A = B

B sells to C for $577.50 at a profit of 5%:    1.05B = 577.50

Substitute B with 1.10A in the second equation:

1.05(1.10A) = 577.50

       1.155A = 577.50

               A = 500

7 0
3 years ago
If f(x)=2x-3/5 , which of the following is the inverse of f(x)?
grigory [225]

Answer:

(5x+3)/2

Step-by-step explanation:

f(x)=(2x-3)/5

f(x)=y

y=(2x-3)/5

interchanging role of x and y

x=(2y-3)/5

5x=2y-3

5x+3=2y

y=(5x+3)/2

the inverse if f(x) = (5x+3)/2

5 0
3 years ago
Need help ASAP!!!!!!!!!!!!!!!!!!!!!!!!!
il63 [147K]

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Step-by-step explanation:

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3 years ago
Prove this trigonometric identity<br>sin ​3x/sin x - cos 3x/cos x =2
Sveta_85 [38]

Step-by-step explanation:

LHS= sin 3x/sin x - cos 3x/cosx

Taking LCM,

<u>=</u><u>sin3xcosx- cos3xsinx</u>

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<u>=</u><u>sin(3x-x)</u>

sinxcosx

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2sinxcosx

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Proved.

8 0
3 years ago
Solve please :) need to figure out which one is true
olasank [31]

Answer:

Option B is true

Step-by-step explanation:

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6 0
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