Answer:
30.7
Step-by-step explanation:
It's 30.7 because 707/23
Strictly speaking, x^2 + 2x + 4 doesn't have solutions; if you want solutions, you must equate <span>x^2 + 2x + 4 to zero:
</span>x^2 + 2x + 4= 0. "Completing the square" seems to be the easiest way to go here:
rewrite x^2 + 2x + 4 as x^2 + 2x + 1^2 - 1^2 = -4, or
(x+1)^2 = -3
or x+1 =i*(plus or minus sqrt(3))
or x = -1 plus or minus i*sqrt(3)
This problem, like any other quadratic equation, has two roots. Note that the fourth possible answer constitutes one part of the two part solution found above.
Given data:
Total number of songs = 8
Rock songs = 3
Reggae songs = 2
Country songs = 3
Probability = Number of favorable outcomes / Total number of outcomes
To find:
When song is selected randomly to play first song and then second song from remaining ones ,
Probability when both the songs are from Reggae songs,
Thus , the probability is 1/28.
The expression you want to simplify is 0-(x-y).
0-(x-y)
=-(x-y)
=-x+y
You just have to treat the negative sign in front of (x-y) as a -1 and distribute it to both x and -y.
Isn’t this just 20m? Or is it a trick question and I’m just not getting it?
Arman (10m) Babken (10m) Cecilia
