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3 years ago

Which graph shows the inequality ?

Mathematics

1 answer:

OLEGan [10]3 years ago

7 0

Answer:

A) The number line goes from negative 8 to positive 8. At 0, there is an open circle. The number line is shaded to the left of 0 and on the left end of the shaded line there is a left-facing arrow.

Step-by-step explanation:

Given inequality: x < 0

open circle: < or >

filled circle: ≤ or ≥

Therefore, for x < 0 there will be an open circle at 0.

< means less than, so the number line will be shaded to the left of 0 and there will be a left-facing arrow on the end of the shaded line.

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A sound wave has a frequency of 125 Hz and a speed 5000 m/s What is the wavelength of the wave

kipiarov [429]

The wave length of the sound with parameters frequency of 125 Hz and a speed 5000 m/s is 40 meters

<h3>Given Data</h3>

velocity = 5000 m/s

frequency = 125 Hz

wavelength = ??

We know that the relationship between speed, frequency and wavelength is given as

v = fλ ----------------------------1

substitute our given parameters

5000 = 125 * λ

Divide both sides by 125

λ = 5000/125

λ = 40 m

Hence the wave length of the sound is 40 meters

Learn more about sound here:

brainly.com/question/24544245

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3 years ago

Write a letter to the Principal of your school stating what you want her to do to improve the school.

Llana [10]

Answer:

you can write about adding new computers or moniters

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3 years ago

The difference between the observed value of the dependent variable and the value predicted using the estimated regression equat

Elenna [48]

Answer:

For this case we define the dependent variable as Y and the independent variable X. We assume that we have n observations and that means the following pairs:

$(x_1, y_1) ,....,(x_n,y_n)$

For this case we assume that we want to find a linear regression model given by:

$\hat y = \hat m x +\hat b$

Where:

$\hat m$ represent the estimated slope for the model

$\hat b$ represent the estimated intercept for the model

And for any estimation of the dependent variable $\hat y_i , i=1,...,n$ is given by this model.

The difference between the observed value of the dependnet variable and the value predicted using the estimated regression equation is known as residual, and the residual is given by this formula:

$e_i = y_i -\hat y_i , i=1,...,n$

So the best option for this case is:

d. residual

Step-by-step explanation:

For this case we define the dependent variable as Y and the independent variable X. We assume that we have n observations and that means the following pairs:

$(x_1, y_1) ,....,(x_n,y_n)$

For this case we assume that we want to find a linear regression model given by:

$\hat y = \hat m x +\hat b$

Where:

$\hat m$ represent the estimated slope for the model

$\hat b$ represent the estimated intercept for the model

And for any estimation of the dependent variable $\hat y_i , i=1,...,n$ is given by this model.

$e_i = y_i -\hat y_i , i=1,...,n$

So the best option for this case is:

d. residual

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3 years ago

Dr. Jones took out a loan for a van that could be equipped with veterinarian supplies for visits to animal shelters. The van cos

iogann1982 [59]

Basically what you have to do is multiply all the numbers (22,500, 4, and 4.5)

But for the interest rate after conversion it would be 0.045.

So now all, what you have to do is multiply 22,500 times 4 times 0.045 and boom you get your answer.

The concept is very simple. If you wanna learn more search up the interest formula!
Good Luck!

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3 years ago

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Tema [17]

The answer is the movie Stan picked cost 2.50 more than the movie Blake picked.

Step-by-step explanation:

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4 years ago