Answer:
x= maths error
Step-by-step explanation:
x² = -25
x=√-25
x= maths error
Answer:
There is a 73.11% probability that at least 2 machines will break down on a given day.
Step-by-step explanation:
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

In which
is the number of different combinatios of x objects from a set of n elements, given by the following formula.

And p is the probability of X happening.
In this problem we have that:
There are 4 machines, so
.
The probability that on a given day any one machine will break down is 0.53. This means that
.
What is the probability that at least 2 machines will break down on a given day?

In which




So

There is a 73.11% probability that at least 2 machines will break down on a given day.
1.) set up the problem as if there were no decimals
4.) Multiply
2.) count the numbers behind the decimals in the problem
3.) count over that number of spaces from the right in your to place the decimal
Answer:
3r + 4t = 80
Step-by-step explanation:
Roses cost $3 each, tulips cost $4 each
Answer:
couldnt tell ya
Step-by-step explanation:
not enough info