The number of permutations of 8 people taken 6 at a time is given by:
Answer:
9
Step-by-step explanation:
Let the number be n.
Then: 4n + 15 = 6n - 3
Subtract 4n from both sides, obtaining: 15 = 2n - 3
Now add 3 to both sides, obtaining 18 = 2n. Then n = 9.
Answer:
Im not
sure but i think its (B) i really hope its right
Step-by-step explanation:
When substituting, you want to take the y value from one equation and plug it into the y variable in the other equation to find the x value. When you find the c value, you plug the number into one of the equations to get your y value.
Answer:
the discriminant would be -23
Step-by-step explanation: