Answer:
31x^2-2 is the answer....
Step-by-step explanation:
 
        
             
        
        
        
Answer:
1/ 8
Step-by-step explanation:
Given that:
Number of red cards in deck = 26
Number of diamonds in deck = 13
Number of cards in deck = 52
Recall :
Probability = required outcome / Total possible outcomes 
Probability of choosing a red :
P(red) = 26 / 52 = 1/2
With replacement :
Probability of diamond :
P(diamond) = 13 / 52 = 1/4
Hence, 
Probability of first card red, then second card diamond equals
P(red) * P(diamond)
1/2 * 1/4 
= 1/8
 
        
             
        
        
        
Answer:
5 gift bags
Step-by-step explanation:
8 x 5 = 40
10 x 4 = 40
 
        
             
        
        
        
The number of handshakes that will occur in a group of eighteen people if each person shakes hands once with each other person in the group is 153 handshakes 
In order to determine the number of handshakes that will occur among 18 people, that is, the number of ways we can choose 2 persons from 18 people.
∴ The number of handshakes = 






∴ The number of handshakes = 153 handshakes 
Hence. 153 handshakes will occur in a group of eighteen people if each person shakes hands once with each other person in the group.
Learn more here: brainly.com/question/1991469