Which of the following demonstrates the Distributive Property of Multiplication? -3(10 + 2) = -3(2+10)
none of these
-3(10 + 2) = -3(10) + 2
-3(10 + 2) = (-3)(10) + (-3)(2)

-3(10+2) = (-3)(10) + (-3)(2)

Step-by-step explanation:

This is the only one where an outside constant is multiplied out by constants in a parentheses. The -3 is DISTRIBUTED to the 10 and the 2 inside the parentheses. The parentheses was basically broken and simplified.

hi there!

the answer will be d: 2

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