Answer: v^2 -4v-21
Step-by-step explanation:
The number of ways of choosing 4 digits from 10 digits without replacement ( order is important) is
. This is the number of all possible permutations of choosing 4 from 10. The first 4 numbers of your phone number is a unique 4 digit number(4 different digits). The required probability is

Answer:
y = 1/3x - 1
Step-by-step explanation:
This is because the slope is rise over run. The slope is 1/3 and the y-intercept is -1
Hope this helps
D is the answer Because I ik it’s the answer
Answer: B and C are both correct so idk
Step-by-step explanation:
when you multiply the numbers outside of the choices, both answers in B and C are correct.