With this my
what is 3--4? i do know it's equal to 3+4 but i always wonder what is this considered to be as it's more easier to use 3+4 then why 3--4 is still be used in maths since we don't use it in real life and plz give me examples for its uses

Suppose that the price p (in dollars) and the weekly sales x (in thousands of units) of a certain commodity satisfy the demand equation 4p cubedplusx squaredequals38 comma 400. determine the rate at which sales are changing at a time when xequals80, pequals20, and the price is falling at the rate of $.20 per week.

Is the power produced directly proportional to the wind speed, give reasons for your answer?

Which sums are equal to 1hold 6/8? choose all answers that are correcta.1/8+6/8b.12/8+2/8c.8/8+1/8+1/8+1/8+1/8+1/8+1/8d.8/8+6/8