Question

if y^8=4 and y^7=3/x, what is the value of y in terms of x?

Answer 1

not sure what " what is the value of y in terms of x?" means

Answer 2

if \(y^8=4\) then
\(y=\sqrt[8]{4}\) or \(y=-\sqrt[8]{4}\)

Answer 3

only a choice of two number

Answer 4

we have to find y like these are the answer choices:
a. 4x/3
b. 3x/4
c. 4/x
d. x/4
e. 12/x

Answer 5

there must be a typo somewhere in the problem

Answer 6

why? what do u mean?

Answer 7

if \(y^7=\frac{3}{x}\) then
\[y=\sqrt[7]{\frac{3}{x}}\]

Answer 8

im not really sure how to do this but i checked the answer and it says that the answer is 4x/3

Answer 9

maybe we can try this
\[y^8=4, y^7=\frac{3}{x}\] and \[y^8=y^7\times y\] so
\[y^8=y^7\times y\implies 4=y^7\times y\implies 4=\frac{x}{3}y\]

Answer 10

typo there sorry

Answer 11

\[y^8=y^7\times y\implies 4=y^7\times y\implies 4=\frac{3}{x}y\]

Answer 12

its ok :)

Answer 13

then solve for \(y\)

Answer 14

ok :) i got it thanks a lot :)

Answer 15

yw