Each face of the cube has an equal
probability of being rolled. There are 2 numbers on the cube less than 3 (1 and 2). The event of rolling a 1 and the event of rolling a 2 are mutually exclusive (you can't roll both faces at once), so
![P(1\text{ or }2)=P(1)+P(2)=\dfrac16+\dfrac16=\dfrac13](https://tex.z-dn.net/?f=P%281%5Ctext%7B%20or%20%7D2%29%3DP%281%29%2BP%282%29%3D%5Cdfrac16%2B%5Cdfrac16%3D%5Cdfrac13)
Answer:
D ) h₁,₂ =[ ( 9 ± √97 ) ]/8
Step-by-step explanation:
The equation of the football is
h = -16t² + 36t +4
What is the time for football to hit the ground
Hit the ground means h = 0 then
-16t² + 36t + 4 = 0
Simplifying by (-4)
4t² - 9t - 1 = 0 a second degree equation
Solving
h₁,₂ =[ ( 9 ± √(81 + 16) ] /8 ⇒ h₁,₂ =[ ( 9 ± √97 ) ]/8
The answer given in D
This is a proportion. You need to be able to find the missing value based on the information they've provided you with.
Here's the best way to solve ⇒
2/3 = x/48
Cross multiply them. ⇔ 2*48 = 3x
96 = 3x
x = 32
the missing value is 32
Answer:
A = (x + 7)(x + 9)
Step-by-step explanation:
Let the width w = x
then length l = w + 4 = x + 4
Area = length x width
= x(x+4)
Then the the width is increased by 7 units and the length increased by 5 units.
w = x + 7
l = (x + 4) + 5 =x + 9
A = (x + 7)(x + 9)
Each of the four sets has a K, Q and J.
That is 3 (each card) times 4 (for each suit) = 12
Each card deck is 52 cards.
The answer is 12/52 or 3/13