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3 years ago

If z^2 is directly proportional to W and Z=4 when W=8

Mathematics

2 answers:

aliya0001 [1]3 years ago

6 0

Answer:

z² = 2W

Step-by-step explanation:

Assuming you require the equation of proportionality

Given z² is directly proportional to W then the equation relating them is

z² = kW ← k is the constant of proportion

To find k use the condition z = 4 when W = 8

4² = 8k

16 = 8k ( divide both sides by 8 )

2 = k

z² = 2W ← equation of proportionality

NARA [144]3 years ago

3 0

Answer:

The constant of proportionality is 2.

Step-by-step explanation:

z^2 = kW where k is a constant.

When z = 4 , W = 8 so

4^2 = 8k

k = 4^2/8

= 16/8

= 2.

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