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Semmy [17]
4 years ago
7

A teacher wants to find out the average number of weekly reading hours of her students. She noted the number of reading hours of

5 of her students, as shown below:
5, 2, 4, 8, 6

Which measure of central tendency is most appropriate for this situation, and what is its value?

Only the median; 5
Only the mean; 4
Either the mean or median; both are 5
Either the mean or median; both are 4
Mathematics
2 answers:
Alex777 [14]4 years ago
5 0

Answer:

C: Either the mean or median; both are 5

Step-by-step explanation:

MEAN: 5+2+4+8+6= 25 = 25/5= MEAN IS 5

MEDIAN: put it in order: 2,4,5,6,8

              cross out 2,8,4,6

              left over number is 5

             So median is 5

         

creativ13 [48]4 years ago
5 0

Answer:

The answer is C: Either the mean or median; both are 5

I hope this helps!! :)

You might be interested in
The following graph is a linear function comparing the inches of snowfall to hours of time in a specific location.
Maurinko [17]

Answer:

Step-by-step explanation:

Domain of a function is given by the set of x-values (Input values) on the graph.

Range of a function is given by the set of y-values (output values) on the graph.

From the graph attached,

Set of time will represent the "domain" and set of snowfall will represent the "range" of the function graphed.

a). Domain of the function: 0 ≤ x ≤ 5

b). Range of the function: 0 ≤ y ≤ 10

3 0
4 years ago
9. Combine the radical expression, if possible.
Anastaziya [24]

Answer:

we conclude that:

3\sqrt{125}+4\sqrt{20}=23\sqrt{5}    

Hence, the last option i.e. 23\sqrt{5} is correct.                      

Step-by-step explanation:

Given the expression

3\sqrt{125}+4\sqrt{20}

Combining the radical expressions

3\sqrt{125}+4\sqrt{20}

let us first solve

3\sqrt{125}

=3\sqrt{5^3}

=3\sqrt{5^2\cdot \:5}

Apply radical rule:  \sqrt{ab}=\sqrt{a}\sqrt{b},\:\quad \:a\ge 0,\:b\ge 0

=3\sqrt{5^2}\sqrt{5}

Apply radical rule:   \sqrt{a^2}=a,\:\quad \:a\ge 0

=3\cdot \:5\sqrt{5}

=15\sqrt{5}

Thus,

3\sqrt{125}=15\sqrt{5}

similarly solving

4\sqrt{20}

=4\sqrt{2^2\cdot \:5}

Apply radical rule:  \sqrt{ab}=\sqrt{a}\sqrt{b},\:\quad \:a\ge 0,\:b\ge 0

=4\sqrt{2^2}\sqrt{5}

Apply radical rule:   \sqrt{a^2}=a,\:\quad \:a\ge 0

=4\cdot \:2\sqrt{5}

=8\sqrt{5}

Thus,

4\sqrt{20}=8\sqrt{5}

so we get

3\sqrt{125}=15\sqrt{5}

4\sqrt{20}=8\sqrt{5}

so the expression becomes

3\sqrt{125}+4\sqrt{20}=15\sqrt{5}+8\sqrt{5}        ∵ 3\sqrt{125}=15\sqrt{5} , 4\sqrt{20}=8\sqrt{5}

                        =23\sqrt{5}                   ∵ 15\sqrt{5}+8\sqrt{5}=23\sqrt{5}

Therefore, we conclude that:

3\sqrt{125}+4\sqrt{20}=23\sqrt{5}    

Hence, the last option i.e. 23\sqrt{5} is correct.                    

7 0
3 years ago
The ratio of the measures of the angle of a triangle is 1to2to3 find the measure of each angle<br>​
KiRa [710]

Answer:

213

Step-by-step explanation:

wda

5 0
3 years ago
The area of a rectangle is 108 m2 and its diagonal is 15 m. Find
Andre45 [30]

Answer:

47.6m.

Step by step solution:

Perimeter of a triangle = base + 2 . length____(1)

Area of a triangle = 1/2 . base . diagonal

108 = 1/2 . base . 15

multiplying both sides by 2:

216 = 15 . base

dividing both sides by 15:

base = 14.4m

But the diagonal divides the triangle into two

right angle triangles each with the same length (hypotenuse),base and diagonal(height).

Taking one right angle triangle:

And using pythagoras theorem;

length² = base² + diagonal ²

length² = 7.2² + 15²

Note: Base of each right angle triangle is 7.2 which would sum up to be 14.4 the base of the full triangle.

length² = 276.84

taking the square root of both sides:

length = 16.6m

Putting the values of the base and length into equation (1).

Perimeter of the triangle = 14.4 + 2 . 16.6

Note: We are dealing with the whole triangle

now hence the base is 14.4m.

Perimeter of the triangle = 14.4 + 33.2 = 47.6m.

6 0
3 years ago
Read 2 more answers
PLXS HELP NEED BY TODAY
Vinil7 [7]

Answer:

I believe its 17, this is a 90 degree angle, so 90-73=17

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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