Learning Task 1: Write the decimal form of each item below. Do this in your notebook.
1. Three hundred forty-two ten thousandths
2. Five and thirty-eight thousandths
3. Seventy-six and two tenths
4. One hundred and twenty-seven thousandths
5. Nine hundred sixteen and twelve ten thousandths
6. Seven hundred twelve and eleven ten thousandths
7. Thirty-one ten thousandths
8. Nine and nine tenths​

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify

a

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