It is important that a room have light during the next month. You want to ensure that the chances of the room going dark are less than 1 in a million. How many lightbulbs should you install in the room to guarantee this if each one has a 94% probability of staying lit during the month. (Round your answer to the nearest whole number.)

is there a question here?

step-by-step explanation:

a≈380.13mi² would be your answer if the radius was 11 miles

b) yes

step-by-step explanation:

let the statements be named as,

statement 1: if the power has been cut, then the refrigerator does not work.

statement 2: the refrigerator does not work.

conclusion: the power has been cut

now, 'law of detachment states that if we have the statements given as,

1. if p, then q.

2. p

then, we get the true statement or conclusion as q'.

thus, on comparing, we get that,

p: if the power has been cut.

q: the refrigerator does not work.

so, the argument is true by the law of detachment.