All categories

3 years ago

Z² =31 round z² to the nearest ten

Mathematics

1 answer:

weeeeeb [17]3 years ago

6 0

I got it down to the simplest form but it’s easy to take it from here so you can give it a try if you’d like to

You might be interested in

Once you have a single variable isolated in one of the two equations in a system, the second step of using substitution to solve

Ket [755]

I think C, not sure though :)

6 0

4 years ago

Read 2 more answers

An airline knows that 5 percent of the people making reservations on a certain flight will not show up. Consequently, their poli

kenny6666 [7]

Answer:

the probability that there will be a seat available for every passenger who shows up is 0.74

Step-by-step explanation:

if the probability of choosing a passenger that will not show up is 5% , then the probability of choosing a passenger that will show up is 95%.

Denoting event X= x passengers will show up from the total of 52 that purchased the ticket

Then P(X) follows a binomial probability distribution, since each passenger is independent from others. Thus

P(X) = n!/((n-x)!*x!)*p^x*(1-p)^(n-x)

where

n= total number of passengers hat purchased the ticket= 52

p= probability of choosing a passenger that will show up

x = number of passengers that will show up

therefore the probability that the number does not exceed the limit of 50 passengers is:

P(X≤50)= ∑P(X=i) from i=0 to i=50 =F(50)

where F(x) is the cumulative binomial probability distribution, then from tables:

P(X≤50)= F(50) = 0.74

therefore the probability that there will be a seat available for every passenger who shows up is 0.74

8 0

4 years ago

Your free ride to work ends in 14 days. So, maybe you need a car? How much can you afford to spend? Below is what's available at

garri49 [273]

Step-by-step explanation:

Kindly find attached a screenshot of the price list of some cars from motor 1 .com since you did not provide any in the question, and let us assume it is the same as what is available at a dealership near you.

From the list, since you don't have enough money in your account to buy a car, I will say you should get a 2017 Nissan Versa for $11,990

and 25% of $11,990 is

(25/100)* 11,990

0.25* 11,990

$2997.5

So you can make a down payment of $2997.5

and pay the remainder of $8992.5 later

6 0

4 years ago

They have a total of w dollars to buy 5 tickets each ticket costs 15 dollars

Dmitrij [34]

Answer:

$75

Step-by-step explanation:

If they have a total of w dollars to buy 5 tickets, and each ticket costs 15 dollars, $15 x 5 tickets = $75.

3 0

3 years ago

Read 2 more answers

Identify the percent of change as increase or decrease of 138 to 75

RUDIKE [14]

138 x ? = 75
? = 75/138 = 0.544(3sf)
so about 54.35% (2dp) decrease

8 0

3 years ago

Z² =31 round z² to the nearest ten​

Z² =31 round z² to the nearest ten