I was given this problem, and I have no clue what it means or wheere to start. The answer and how to arrive to it would be much appreciated.
Thanks
2007-12-29 10:22:48 · 6 answers · asked by frank e 1 in Science & Mathematics ➔ Mathematics
√x y = k
(√12) (8) = k
k = 16√3
y = 16√3 / √6
y = 16 / √2
y = 8 √2
2007-12-30 09:51:27 · answer #1 · answered by Como 7 · 0⤊ 0⤋
RE: If y varies rapidly with x, and y=10 while x=15, discover y while x=6.? If x varies inversely as y and x=2 while y=8, discover x while y=17. If y varies rapidly as x and inversely as z^2, and y=3 while x=2 and z=4, what's the fee of x while y=9 and z=4?
2016-12-18 11:33:42 · answer #2 · answered by ? 4 · 0⤊ 0⤋
varies inversely means y = k/√x, k constant number
when x = 12, y = 8
8 = k/√12
k = 8√(12) = 16√(3)
y = 16√(3) /√x
when x = 6
y= 16√(3) /√6 = 16/√(2) = 8√(2)
2007-12-29 10:36:18 · answer #3 · answered by Helper 6 · 0⤊ 0⤋
y varies inversely as √x means that y = c/√x for some constant c. You can use the given data that y = 8 when x = 12 to find c.
2007-12-29 10:33:57 · answer #4 · answered by a²+b²=c² 4 · 0⤊ 0⤋
things that vary inversely to each other have a common product.
So there is a constant c with y sqrt(x) = c
now plug in 8,12
8sqrt(12) = c
ysqrt(6) = c
y = 8sqrt(12)/sqrt(6) = 8sqrt(2)
2007-12-29 10:40:10 · answer #5 · answered by holdm 7 · 0⤊ 0⤋
y=k/sqrt(x)
8=k/sqrt(12)
k=sqrt(12) x 8
when x=6,
y=sqrt(12) (8)/ sqrt(6) (answer)
=3.464(8)/sqrt(6)
11.313
check my calculation.
2007-12-29 10:33:57 · answer #6 · answered by cidyah 7 · 0⤊ 0⤋