The radius of a circle is 0.7 centimeters. What is the approximate area? Use 3.14 for π. *

1.5394 i believe

hope its the right answer for you

R=0.7cm

Area=πr²

3.14×0.7×0.7cm

3.14×1.4cm

4.396cm

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