3.7+3.-1=help I have a homework and I don't know the answer

Mathematics

1 answer:

vredina [299]3 years ago

3 0

Answer:

the solution is 5.7

3.7+3-1
6.7-1
5.7

You might be interested in

Please give me the correct answer

Anna11 [10]

Answer:

i dont think so.

Step-by-step explanation:

3 0

3 years ago

Find f(-2) and find one value of x for which f(x)=-1

IrinaVladis [17]

Solution

Step 1

f(-2) is the value of f(x) at which x = -2

Trace x =-2 from the graph and get f(-2)

6 0

1 year ago

A large disaster cleaning company estimates that 30 percent of the jobs it bids on are finished within the bid time. Looking at

Y_Kistochka [10]

Answer:

There is a 13.61% probability that exactly 4 of the jobs were not completed within the bid time.

Step-by-step explanation:

For each job, there are only two possible outcomes. Either they are completed on time, or they are not. This means that we use the binomial probability distribution to solve this problem.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

Looking at a random sample of 8 jobs that it has contracted, calculate the probability that exactly 4 of the jobs were not completed within the bid time.

There are 8 jobs, so $n = 8$ .