Answer:
1) -5 and +5; 2) -9 and +9
Step-by-step explanation:
1) a² + 2ab + b² = 25
(a + b)² = 25 Wrote the left-hand side as a square
a + b = ±5 Took the square root of each side
All values of a + b are -5 and +5.
2) a² − 8ab + 16b² = 81
(a - 4b)² = 81 Wrote the left-hand side as a square
a - 4b = ±9 Took the square root of each side
All values of a - 4b are -9 and +9.
Answer:
if you are asking the probability of heads vs tails, then its a 50/50 most of the time, just in this situation, there was 1% more chance to get tails.
Step-by-step explanation:
still 50/50, because .01 is a very small number.
Answer:
The formula is 
Step-by-step explanation:
The formula V = I R shows the relationship between voltage, current, and resistance.
It is given by the Ohm's law.
According to this law, at constant temperature, the current flows in any conductor is directly proportional to the potential difference applied.
V = I R
where, V is the potential difference, I is the current and R is the resistance.
The resistance is given by

Answer:
The answer in the simplest form would be 28/9 or 3 1/9
Step-by-step explanation:
Very simple you would divide the 56 and the 18 by 2 and you get 28/9.
or you could change it to a improper fraction in that case it would be 3 1/9
Easiest way to get the surface area of the lateral square pyramid is by using the formula:

a = Base edge = 646 ft
h = Height = 350 ft
Using the formula:

[tex]A_{L} = 6.15335×10^{5} square feet
[tex]A_{L} = 615335<span> square feet</span>