Pacey's computer is infected with a virus. The number of files the virus corrupts doubles every 8 minutes. The following expression represents the number of files corrupted after x minutes. Which statement is true? A. The expression (1.09)x reveals the approximate rate at which the files are corrupted per minute. B. The expression (1.09)x reveals the approximate rate at which the files are corrupted per hour. C. The expression (0.91)x reveals the approximate rate at which the files are corrupted per minute. D. The expression (0.91)x reveals the approximate rate at which the files are corrupted per hour.

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

answer: what is the conflict?

step-by-step explanation:

*what has happened to new york city?

*what is in the time capsule?

* what did the kidz see that gave them hope?

*what will they do with what they find?

* how will they save the city?

* what challenges will they face along the way?

*what big choice will they make at the climax of the story?

* what lesson do they learn at the end of the story?