Answer: 0.001
Step-by-step explanation:
Given
The lock has 3 dials, each with the number 0 through 9.
The first place can be filled in 10 ways and the probability of selecting number '4' out of the 10 is 
Similarly for selecting '3' and '9' is also
Therefore the probability of getting a combination of 4-3-9 is
Answer:
1) -128
2) 6875/64 = 107.42
3) perfect square means the square root gives a whole number.
4) it is, it gives 9
5) 300,000,000
6) a) 6 b) 71
7) 25
The answer is B.red
the reason:
if x=2
-2 (2)+ 5y = 10
-4 +5y = 10
5y = 10+4
5y = 14
y = 2.8
now we have the point (2 . 2.8) which is absolutely on the line -2x + 5y = 10
when we look for it we see that it's on the line b which means line b is -2x + 5y = 10
