Joel is an amateur bird watcher. during one trip, he measured the amount of time it took to watch 5 birds as 5 1/2 seconds, 3 seconds, 8 1/4 seconds, 6 1/6 seconds, and 2 5/6 seconds. what is the average amount of time joel measured?

answer: d. $20

step-by-step explanation:

just took the test

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

(2,6)

step-by-step explanation:

cause i just did this and got the answer

you're welcome

f(x) is   are being squared

g(x) is   increasing by 2

h(x) is adding .25 each time

k(x) is taking the square root

f(x) and k(x) are exponential functions