Question
Asked Nov 3, 2019

Use the given information to find the unknown value.

y varies jointly as the square of x and the square root of z. When
x = 3
and
z = 4,
then
y = 36.

Find y when

x = 9

and

z = 36.
check_circleExpert Solution
Step 1

Given,

y varies jointly as the square of x and the square root of z.

As y varies jointly as x2 and Vz, So we can write
y kE1)
Where kconstant
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As y varies jointly as x2 and Vz, So we can write y kE1) Where kconstant

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Step 2

To find k:

...
Substitute x 3,z = 4 and y = 36 in equation (1)
36 k (3).4
36 k.9.2
36 18k
k 2
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Substitute x 3,z = 4 and y = 36 in equation (1) 36 k (3).4 36 k.9.2 36 18k k 2

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Tagged in

Math

Algebra

Equations and In-equations