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sergejj [24]
3 years ago
14

Determine whether the quantitative variable is discrete or continuous. Number of students in a class Is the variable discrete or

​ continuous? A. The variable is continuous because it is not countable. B. The variable is discrete because it is not countable. C. The variable is continuous because it is countable. D. The variable is discrete because it is countable.
Mathematics
1 answer:
olga nikolaevna [1]3 years ago
6 0

Answer:

D) The variable is discrete because it is countable.      

Step-by-step explanation:

Both discrete and continuous falls under the numeric category.

Discrete variables are the variable that are countable and cannot be expressed in decimal form.

Example: Tosses of a coin, Number of rooms in an house.

Continuous variables on the other hand cannot be counted, they are countable and can be expressed in the form of decimals. Its value can be expressed in the form of interval.

Example: Time, Length.

Now, number of students in a class is a discrete variable since students are countable and they cannot be expressed in decimal form.

So the correct option is D) The variable is discrete because it is countable.

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Nata [24]
<span>The side opposite the 30 degree angle is half of the hypotenuse.
a^2 + b^2 = c^2  =>

a^2 + (c/2)^2 = c^2
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3 years ago
1<br> What are the basic tools of Euclidean geometry?
AVprozaik [17]

Answer:

The straightedge and the compass. The name is due to the fact that connecting points with segments, prolonging segments and drawing circles with a given center and a given radius are the basic geometric constructions described in the first three Euclidean postulates.

Step-by-step explanation:

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5 0
3 years ago
For real number a, which of the following equations are true ? Select all that apply.
trapecia [35]

ANSWER

\lim_{x \to \: a}(x)  = a

\lim_{x \to \: a}(a)  = a

\lim_{x \to \: 5}(x)  = 5

EXPLANATION

For real number 'a',

\lim_{x \to \: a}(x)  = a

is true because we have to plug in 'a' for x.

\lim_{x \to \: a}(a)  = a

This is also true because limit of a constant is the constant.

\lim_{x \to \: 5}(4)  = 5

is false. The correct value is

\lim_{x \to \: 5}(4)  =4

\lim_{x \to \: 5}(x)  = 5

is also true because we have to substitute 5 for x.

\lim_{x \to \: a}(a)  = x

is also false

The limit should be

\lim_{x \to \: a}(a)  = a

3 0
3 years ago
Each week, Rosario drives to an ice skating rink that is 120 miles away. The round-trip takes 2.75 hours. If he averages 55 mile
kari74 [83]
While going to the ice skating rink,
Rosario drives a distance of 55 miles in = 1 hour
Then
While going to the ice skating rink,
Rosario drives a distance of 120 miles in = (1/55) * 120 <span>                                                                                                         = 2.18 hours</span>
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Then time taken by Rosario to come back
home from ice skating rink = (2.75 – 2.18) hours <span>                                                     = 0.57 hours</span>
Then we can write the equation as
 x = 120/0.57 miles/hour <span>  
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6 0
3 years ago
Let u = x ^ 2 + 3 . Which equation is equivalent to (x ^ 2 + 3) ^ 2 + 21 = 10x ^ 2 + 30 in terms of u?
Serggg [28]

Answer:i think that it is B

u^2 - 10u + 51=0

Step-by-step explanation:

3 0
3 years ago
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