Answer:
8
Step-by-step explanation:
A security alarm requires a four-digit code. the
code can use the digits 0-9 and the digits
cannot be repeated. which expression can be
used to determine the probability of
Answer:
3BC
Step-by-step explanation:
8BC - 9BC + 10BC - 6BC = BC(8 - 9 + 10 - 6) = BC(3) = 3BC
Answer:

Step-by-step explanation:
we have

Applying the property of exponents

