A...............................
Answer:
5.0625
Step-by-step explanation:
1. (2/3)^-4
2."store" the ^-4 for later use
3.calculate 2/3 or .66
4.use the ^-4 on .66
The probability of an event P(n), is equal to the number of the outcomes of that event n(E), divided by the total number of outcomes, or the sample space, n(S)
so



The probability of an event = 1 - probability of the same event not to happen
so P(not need repair within the first year)=1-0.25=0.75
Answer: a) 0,25; b) 0,75
3 consecutive even integers.....x, x + 2, and x + 4
x + x + 2 + x + 4 = 270
3x + 6 = 270
3x = 270 - 6
3x = 264
x = 264/3
x = 88
x + 2 = 88 + 2 = 90
x + 4 = 88 + 4 = 92 <=== the biggest integer
I’m not 100% sure but i think ur answer rn is correct don’t check the second box