Answer:
4
Step-by-step explanation:
I took the quiz, here's proof
Answer:
-6x+26
Step-by-step explanation:
6x+21-12x+5
-6x+26
The total cost would be:
$20 = two people- 2*20=40$
20 = guest
20*20=
400 would be the cost
Both of these conditions must be true in order for the assumption that the binomial distribution is approximately normal. In other words, if
and
then we can use a normal distribution to get a good estimate of the binomial distribution. If either np or nq is smaller than 5, then a normal distribution wouldn't be a good model to use.
side note: q = 1-p is the complement of probability p
Hi there!
Let's solve this equation step by step!

First add 7 to both sides.

Next we need to take a look at the meaning of the stripes between our variable. Those stripes mean we are dealing with an absolute value function. The absolute value stripes make everything between the stripes positive; also when we plug in a number. In this particular question we can plug in both -13 and 13 at the position of n, because when -13 is made positive, it fulfils the equation.
Hence,

or

~ Hope this helps you!