Arthur is drawing triangles. All of the triangles have a base length of 5 inches. The area of the triangle is proportional to the height of the triangle. Which table shows the proportional relationship correctly?
A.
Heights (cm) 3 5 7
Area (sq cm) 7.5 12.5 18.5

B.
Heights (cm) 6 8 10
Area (sq cm) 15 19 25

C.
Heights (cm) 4 5 6
Area (sq cm) 10 13.5 17

D.
Heights (cm) 2 4 7
Area (sq cm) 5 10 17.5

If the base is 8cm & the height is 12cm, then you take 8x12, which is 96, and divide it by 2, which would be 48, so the answer is A

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

1,8,15,22,29,36,43,50

step-by-step explanation: