In a proposed business venture, a businesswoman estimates there is a
70% chance she will make $56,000 and a 30% chance she will lose $
57,000. Determine her expected value.

11.3#6

32/80  

91/140

the last one 54 doesn't go into 45. 54/100 ?

step-by-step explanation:

"a" determine whether sage found the correct quotient. show your work

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

the rocket cannot penetrate the ground, in a contextual sense, therefore the roots of this equation should be the domain of this function. i'll let you find the roots of this quadratic equation (hint: use the quadratic formula:  

1- c

2-a

step-by-step explanation:

mark brainliest!