All categories

2 years ago

Examine the system of equations.

Mathematics

1 answer:

Pachacha [2.7K]2 years ago

6 0

Step-by-step explanation:

The lines have different slopes

.......,............

You might be interested in

How many integers between 1 to 1,000 are divisible by 2 and 3 but not by 5?

Andrews [41]

Answer:

The number of integers divisible by 2 from 1 to 1000 is 1000/2 = 500.

Step-by-step explanation:

8 0

2 years ago

In the diagram m ll n. identify all the angles that are congruent to angle 2

Dvinal [7]

Answer:

A; 4,6,8

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

After one week of meals, the bottle of ketchup contains 25% of its original amount. How many ounces are in the bottle after one

Maru [420]

Answer:

25/7 I think not sure though

6 0

2 years ago

How many units away is 1 from -6 on a number line?

kow [346]

Answer:

The units are 7 away from each other.

Step-by-step explanation:

To find the amount, simply subtract the smaller number from the higher number.

1 - -6 = 7

8 0

2 years ago

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