Experiment consist of drawing one card from a standard 52 card deck. What is the probability of drawing a black 10?

3.8%

Step-by-step explanation:

there r 2 black 10

2÷52×100=3.8

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

in 1995, potato plants were taken into space aboard the space shuttle columbia.

step-by-step explanation: