Answer:
0.9562
Step-by-step explanation:
Binomial probability is mathematically expressed as:

Given that p=0.18, n=5 , is calculated as:

Hence, the probability of no more than 2 successes in 5 trials is 0.9562
It should be 715, i don’t understand why that isn’t one of the choices.
you’re supposed to multiply everything
Answer:
Well, I think that the 50% coupons would give you only 50% off of your entire purchace. Not 100% off.
Step-by-step explanation:
Answer:
The solution is x=3 , y=-4 or (3,-4)
Step-by-step explanation:
Given equations (1 and 2) are:

To solve a system of equation with elimination method, the co-efficients of one of the variables has to be equated and then the equations are added or subtracted to get an equation in one variable.
Multiplying equation 1 by 2:

Multiplying equation 2 by 3

Adding equation 3 and 4

Putting y = -4 in equation 1

Hence,
The solution is x=3 , y=-4 or (3,-4)