1/21 * 1/20 = 1/420 that is the probability that you are chosen first.
Probability of your friend chosen first = 1/420 also.
So the required probability = 1/420 + 1/420 = 1/210 Answer
Its D
Complete the square since can't factor
2/2=1
add 1 to both sides
x²+2x+1-6=1
factor perfect square
(x+1)²-6=1
add 6 to both sides
(x+1)²=7
sqrt both sides
x+1=+/-√7
minus 1 both sides
x=-1+/-√7
so x=-1+√7 or x=-1-√7
Add the x's
SO 3x=18
divided by 3
So x=3
Answer:
Step-by-step explanation:
Answer:
The distance between point N and S is 8 units.
Step-by-step explanation:
count the distance from the x-values:
- from -2 to 6
OR
plot them on a graph and count the units that are between them.
hope this helps ya!! :))
vote brainliest if this was helpful! ;)
