Hello, there!
There are 365 days in a year.
We already know that one person has a birthday on blank day. We will call this person a. That means that there is a 100% chance that they have that birthday.
Because there are 365 days in a year, the odds of person b having a birthday on a certain day is 1/365
Odds of person A having that birthday: 365/365
Odds of person B having that birthday: 1/365
To find the odds of them having the same birthday, we must multiply these odds.
365/365 * 1/365 = 1/365
1/365 = 0.27%
This means that there is a 0.27% chance that both people share the same birthday.
I hope I helped!
Let me know if you need anything else!
~ Zoe
The quadratic equation x² - 5x - 4 = 0 has two real roots as 41 > 0.
<h3>What is a quadratic equation?</h3>
A quadratic equation is an algebraic equation of degree two.
We know in a quadratic equation ax² + bx + c = 0, The discriminant D is b² - 4ac.
If D > 0 the quadratic equation has two real roots.
If D = 0 the quadratic equation has one real root.
If D < 0 the quadratic equation has no real roots.
∴ In x² - 5x - 4 = 0,
Discriminant D is b² - 4ac.
= (-5)² - 4.1.(-4).
= 25 + 16.
= 41.
∴ D > 0 and the quadratic equation has two real roots.
learn more about discriminant here :
brainly.com/question/15884086
#SPJ1
1- Associative property of addition: E
-1+(4+9)=(-1+4)+9
2- Commutative property of multiplication: A
(-9)(0)=(0)(-9)
3- Commutative property of addition: D
-9+1=1+(-9)
4- Identity property of addition: B
-9+0=-9
5- Identity property of multiplication: F
(-9)(1)=-9
6- Associative property of multiplication: C
-1(4•9)=(-1•4)9
1 g
2 h
3 c
4 e
5 d
6 j
7 i
8 l
9 b
10 f
11 k
12 a
I think it’s -2 k i hope I’m right
