Answer:
1 b
2 c
3 a
4 d
Step-by-step explanation:
Sense this would be known to be a 'prism', we would them do the following key point:

Therefore, we would then multiply to following numbers which would be above.
Question #2.The reason to why we would us 'square units' to answer in a area format would be because by doing so, it would then describe the surface of the area. And by knowing what you are measuring something by would be a whole lot easier.
Step-by-step explanation:
If the tens digit of the number is X and the ones digit is Y then the number is equal to 10*X + Y
If you reverse the digits then the number is equal to 10*Y + X
If reversing the digits decreases the number by 36 then
10*Y + X = 10*X + Y - 36
The sum of the digits is 4 so X + Y = 4 ==> X = 4 - Y
Substitute this value of X into the 1st equation
10*Y + (4 - Y) = 10*(4 - Y) + Y - 36
9*Y + 4 = 40 - 9*Y - 36
18*Y = 0
Y = 0
I hope it helps you
So X = 4 - 0 = 4 and the number is 40
so, let's check 40 - 04 = 36
Answer: 0.135
Step-by-step explanation:
if 54 % of internet users have a wireless connection then number of people that do nor have a wireless connection =46%.
Let A be the event that 54% of internet users have wireless connection.
Let B be the event that 25% of these users that have internet connection use twitter to share updates about themselves.
Hence, probability of A and B happening becomes:
P(AnB) = P(A) * P(B)
P(AnB) = 0.54 * 0.25
P(AnB) = 0.135