All categories

3 years ago

Math pls help me?????????

Mathematics

2 answers:

Softa [21]3 years ago

7 0

Answer: A

Step-by-step explanation:

Paul [167]3 years ago

5 0

Answer: A) 0 divided by anything is 0 so its undefined

Step-by-step explanation:

You might be interested in

Linda used a triple beam balance to find the mass of three identical math textbooks. If the total of the three textbooks is 654

Bogdan [553]

Each book is 218 grams

7 0

3 years ago

Read 2 more answers

. Darlene is making punch. She pours 4 quarts 2 cups of apple juice into a bowl. Then she pours 3 quarts 1 cup of grape juice in

pshichka [43]

Answer:

C. 7 quarts 3 cups

Step-by-step explanation:

First you add 4 quarts, with 3 quarts to get 7 quarts. Then, you add 1 cup with 2 cups to get 3 cups.

8 0

3 years ago

Read 2 more answers

Helppppppp on 3 4 please

Brilliant_brown [7]

On 3 add 8 5/6 and 8 1/2 then subtract the answer from 24 1/3.

4 0

3 years ago

it takes him 6 hours through 480 pages today he's going to read for 5 hours how many pages will be read fill out the table below

ad-work [718]

Its 400 pages becasue he reads 80 pages per hour

6 0

3 years ago

Read 2 more answers

The proportion of students who own a cell phone on college campuses across the country has increased tremendously over the past

galina1969 [7]

Complete Question

The complete question is shown on the uploaded image

Answer:

1 ) The correct option B

2) The correct option is C

3) The correct option is C

4) The correct option is C

Step-by-step explanation:

From the question we are told that

The proportion that own a cell phone is $p = 0.90$

The sample size is n = 15

Generally the appropriate distribution for X is mathematically represented as

$X \ is \ B( n , p )$

$X \ is \ B( 15 , 0.90 )$

Generally the number students that own a cell phone in a simple random sample of 15 students is mathematically represented as

$\mu = n * p$

$\mu = 15 * 0.90$

$\mu = 13.5$

Generally the standard deviation of the number of students who own a cell phone in a simple random sample of 15 students is mathematically represented as

$\sigma = \sqrt{ n * p * q }$

Where q is mathematically evaluated as

$q = 1- p$

$q = 1- 0.90$

$q = 0.10$

$\sigma = \sqrt{ 15 * 0.90 * 0.10 }$

$\sigma = 1.16$

Generally the probability that all students in a simple random sample of 15 students own a cell phone is mathematically represented as

$P(X = 15) = \left 15} \atop {}} \right.C_{15} * p^{15} * q^{15 - 15}$

$P(X = 15) = \left 15} \atop {}} \right.C_{15} * (0.90)^{15} * (0.10 )^{15 - 15}$

From the combination calculator is $\left 15} \atop {}} \right.C_{15} = 1$

$P(X = 15) = 1 * 0.205891 * 1$

$P(X = 15) = 0.206$

7 0

3 years ago