Without any passengers, an aeroplane has a mass of 4200 kg. The plane has capacity to carry 120 passengers, and when there are 40 passengers on the plane, the total mass of the plane and passenger is 7480 kg. a) calculate the mean mass of passenger b) Hence, write an expression for un that gives the total mass of the plane and passengers when there are n passengers on board c) state the values of n for which your model is valid

3,750 deer

step-by-step explanation:

1,500 is 15 times larger than 100

lets make 250 15 times larger.

3750 deer

answer: h

step-by-step explanation:

answer: 1 + 1 = 11

step-by-step explanation:

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204