Answer:
Alternative D is the correct solution
Step-by-step explanation:
We are simply choosing 2 from 7 and the order matters, hence its a combination problem
Answer: - 1/7 Or -0.142857repeating
Step-by-step explanation:
#7 is the easiest one.
a + bi = -9 + 4i
see the expression on either side matches up so..
a = -9 and b = 4
Answer:
greater than 1
Step-by-step explanation:
A prime number is a natural number greater than 1 that is not a product of two smaller natural numbers.