The number of ways to choose r objects out of n objects is:
C(n,r) = (n!)/(r! * (n-r)!)
The number of ways to choose 2 numbers out of a list of 9 numbers is:
C(9,2) = 9! / (2! * 7!)
= 9*8 / 2!
= 9*8/2
= 36
Here are all the possible combinations:
98 97
98 91
98 93
98 99
98 96
98 94
98 92
98 95
97 91
97 93
97 99
97 96
97 94
97 92
97 95
91 93
91 99
91 96
91 94
91 92
91 95
93 99
93 96
93 94
93 92
93 95
99 96
99 94
99 92
99 95
96 94
96 92
96 95
94 92
94 95
92 95
Answer:
In this type of equations, having more than one variable (unknown), you have to specify for which variable you want the equation solved.
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
count the number of point between the two and it will give you 4/3 and then the y-intercept is -2 and the slope is positive so then you get y<4/3 - 2
hope this helped!
Answer:
<h2>=-7.1h+2k+1</h2>
Step-by-step explanation:
21 miles / 0.75 miles = 28
28 * $0.90 = $25.20
