Evaluate the expression when a = - 4.2 and b = - 3.9 . - 7b + 2a
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Answer:
Step-by-step explanation:
Using k as the constant of proportionality.
The expression that expresses the relationship : p varies jointly with the square of d and the cube of u.
Varies jointly means that p will change as 'd' and 'u' will change together with respect to their powers.
We get the expression as: