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Zina [86]
2 years ago
10

Find the value of y in the equation attached to this question

Mathematics
2 answers:
Veseljchak [2.6K]2 years ago
7 0

Answer:

y = 4

Step-by-step explanation:

Decompose  in base 3

9^{y} =\frac{3^{5} (3^{2})^{6}  }{(3^{3})^{3}  } =\frac{3^{5}3^{12}  }{3^{9} } =\frac{3^{17} }{3^{9} } =3^{17-9} =3^{8}

if

3^{8} =(3^{2} )^{4} =9^{4}

then

9^{y} =9^{4}

y=4

Hope this helps

dlinn [17]2 years ago
3 0

Answer:

y = 4

Step-by-step explanation:

1) Simplify 3^5 to 243.

{9}^{y}=\frac{243\times {9}^{6}}{{27}^{3}}

2) Simplify {9}^{6} to 531441.

{9}^{y}=\frac{243\times 531441}{{27}^{3}}

3)  Simplify  243\times 531441 to  129140163.

{9}^{y}=\frac{129140163}{{27}^{3}}

4) Simplify  {27}^{3}  to  19683.

{9}^{y}=\frac{129140163}{19683}

5) Simplify  \frac{129140163}{19683} to 6561.

{9}^{y}=6561

6) Convert both sides to the same base.

9^y=9^4

7)  Cancel the base of 9 on both sides.

y=4

Cheers,

ROR

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