All categories

3 years ago

Help!! timed! find the domain and range pls!

Mathematics

1 answer:

BARSIC [14]3 years ago

5 0

Answer:

domain: (-infinity, infinity)

range [-41/4, infinity)

You might be interested in

Miriam is picking out some movies to rent, and she is primarily interested in comedies and foreign films. She has narrowed down

Keith_Richards [23]

Answer:

There are 795 combinations.

Step-by-step explanation:

The number of ways or combinations in which we can select k element from a group of n elements is given by:

$nCk=\frac{n!}{k!(n-k)!}$

So, if Miriam want to choose 3 movies with at least two comedies, she have two options: Choose 2 comedies and 1 foreign film or choose 3 comedies.

Then, the number of combinations for every case are:

1. Choose 2 Comedies from the 10 and choose 1 foreign film from 15. This is calculated as:

$10C2*15C1=\frac{10!}{2!(10-8)!}*\frac{15}{1!(15-14)!}$

$10C2*15C1=675$

2. Choose 3 Comedies from the 10. This is calculated as:

$10C3=\frac{10!}{3!(10-3)!}=120$

Therefore, there are 795 combinations and it is calculated as:

675 + 120 = 795

8 0

3 years ago

Complete the double number to line show percentages of $50

malfutka [58]

Can you send us a picture of the question please

8 0

3 years ago

Can someone pls help me?

kirza4 [7]

Answer:

$\frac{8}{24}$

Step-by-step explanation:

If Adam's family uses 8lb of apples to make pie. We know that 3 x 8 = 24, so it's probably approximately 3 out of 18.

5 0

1 year ago

Z varies directly as x and y, z = 6 when x=2 and y = 6. Find the value of z when x = 3 and y = 8

Monica [59]

Answer:

Step-by-step explanation:

This is a joint variation problem:

z varies directly as x and y

Interpreting this;

z ∝ xy

Therefore;

z = kxy

z = 6, x = 2, y = 6

Now find k,

6 = 2 x 6 x k

6 = 12k

k = $\frac{1}{2}$

To find the value of z;

x = 3, y = 8

z = $\frac{1}{2}$ x 3 x 8 = 12

3 0

3 years ago

FIRST CORRECT ANSWER GETS BRAINLIEST!!! 20 POINTS!!!!!

Leto [7]

Answer:

Step-by-step explanation:

When you plug this expression into the calc, you should get 14 as your answer.

8 0

3 years ago

Read 2 more answers

Help!! timed! find the domain and range pls!​

Help!! timed! find the domain and range pls!