Please help me with this

How many solutions exist for the system of equations on the graph?

mrs_skeptik [129]

Answer:

Two

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Step-by-step explanation:

The solution for any system of equations is the intersection points between the graph that representing the system of equation.

So, for the given system of equation, we have a circle and a parabola.

As shown in the figure, The circle and parabola are intersects at two points

So, there are two solutions for the system of equations on the graph.

So, The answer is option two.

4 0

2 years ago

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Aron rides his bike 12 miles in 3 hours. if he rides at a constant speed, select the answers below that are equivalent ratios to

timurjin [86]

Answer:

A

Step-by-step explanation:

he is riding at a rate of 4 in one and the others do not match 4 in 1

Hope this helps

3 0

2 years ago

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Explain the circumstances for which the interquartile range is the preferred measure of dispersion. What is an advantage that th

KatRina [158]

Answer:

Explain the circumstances for which the interquartile range is the preferred measure of dispersion

Interquartile range is preferred when the distribution of data is highly skewed (right or left skewed) and when we have the presence of outliers. Because under these conditions the sample variance and deviation can be biased estimators for the dispersion.

What is an advantage that the standard deviation has over the interquartile range?

The most important advantage is that the sample variance and deviation takes in count all the observations in order to calculate the statistic.

Step-by-step explanation:

Previous concepts

The interquartile range is defined as the difference between the upper quartile and the first quartile and is a measure of dispersion for a dataset.

$IQR= Q_3 -Q_1$

The standard deviation is a measure of dispersion obatined from the sample variance and is given by:

$s=\sqrt{\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}}$

Solution to the problem

Explain the circumstances for which the interquartile range is the preferred measure of dispersion

Interquartile range is preferred when the distribution of data is highly skewed (right or left skewed) and when we have the presence of outliers. Because under these conditions the sample variance and deviation can be biased estimators for the dispersion.

What is an advantage that the standard deviation has over the interquartile range?

The most important advantage is that the sample variance and deviation takes in count all the observations in order to calculate the statistic.

8 0

2 years ago

The experimental factor that is manipulated; the variable whose effect is being studied is called ____________

lorasvet [3.4K]

Answer:

The experimental factor that is manipulated; the variable whose effect is being studied is called independent variable.

Step-by-step explanation:

Consider the provided information.

In an experiment, the two principal variables are the independent and dependent variable.

An independent variable is the variable that is altered or controlled to test the effects on the dependent variable in a scientific experiment.

The variable which is tested and measured in a scientific experiment is a dependent variable.

From the above definition: The experimental factor that changed or controlled in a scientific experiment is called independent variable.

Therefore, the complete statement is: The experimental factor that is manipulated; the variable whose effect is being studied is called independent variable.

8 0

2 years ago

Kyla has the number of cherries that Denise has. If Kyla has 46 cherries, how many cherries do they have altogether?

pogonyaev

Answer:

92

Step-by-step explanation:

46 + 46 = 92

5 0

1 year ago

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