The hot-wire anemometer is an instrument used for measuring velocities or temperatures. If, during its calibration, the output signal E is measured as 0, 1.7, 3.3, and 5.6 V at velocities V of 0, 1, 1.5, and 2 m/s, obtain the gradient dE/dV at V = 0 m/s, using the polynomial representation of the function E(V).

Explanation:

An expression was assumed for E(V) = av^2 + bv + c

each values for substituted for corresponding values of the velocity and a three unknown equation was formed, which was solved simultaneously to get the three unknowns (a, b and c).

The unknowns was substiutted back ito the original equation.

explanation:

which ordered pair is not in the solution

y > -1/2x + 5

y ≤ 3x - 2

a) (5,3) b) (4,3)

c) (3,4) d) (4,4)

answer:

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Explanation: