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zheka24 [161]
3 years ago
10

The dot plot shows the number of chess games won by each of the 20 students in a competition.

Mathematics
2 answers:
Soloha48 [4]3 years ago
6 0

Answer:

Letter B is the correct answer. Median is 4 and IQR is 5.

Step-by-step explanation:

son4ous [18]3 years ago
5 0

Jason : 8,8,11,13,14,14,15,18,21,22,22,27,27,28,30

           median = 18

           IQR = 27 - 13 = 14

Ed : 7,12,12,15,19,21,21,21,21,22,23,23,26,27,27

       median = 21

       IQR = 23 - 15 = 8

Their medians cannot be compared based on their IQR's are 6 points apart

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The measures of the angles of a triangle are shown in the figure below. Solve for x.
mote1985 [20]

Answer:

X=22

Step-by-step explanation:

In a triangle all the angles add up to 180 so you add them all up and get      6x-21+69=180

                  +21

                 -69

  6x=132 132/6= 22

4 0
3 years ago
The graph of the parent function y = x cubed is horizontally stretched by a factor of One-fifth and reflected over the y-axis. W
sasho [114]

Answer: OPTION D.

Step-by-step explanation:

Below are some transformations for a function f(x):

If -f(x), then the function is reflected over the x-axis.

If f(-x), then the function is reflected over the y-axis.

If f(bx)  and b>1, then the function is horizontally compressed.

If  f(bx)  and 0 < b, then the function is horizontally stretched.

In this case you know that the parent function is:

y=x^3

According to the information given in the exercise, the parent function IS horizontally stretched by a factor of \frac{1}{5} and it is also reflected over the y-axis.

Therefore, based on the transformations explained before, you can notice that the transformation is:

f(-bx)

Where 0 < b

Therefore, the equation of the transformed function is:

y=(-\frac{1}{5}x)^ 3

8 0
4 years ago
Read 2 more answers
Use the rational zero theorem to create a list of all possible rational zeroes of the function f(x) = 14x^7 - 4x^2 + 2
Bas_tet [7]

f(x) = 14x^7 - 4x^2 + 2

Use the rational zero theorem

In rational zero theorem, the rational zeros of the form +-p/q

where p is the factors of constant

and q is the factors of leading coefficient

f(x) = 14x^7 - 4x^2 + 2

In our f(x), constant is 2 and leading coefficient is 14

Factors of 2  are 1, 2

Factors of 14  are 1,2, 7, 14

Rational zeros of the form +-p/q  are

+-\frac{1,2}{1,2,7,14}

Now we separate the factors

+-\frac{1}{1}, +-\frac{1}{2}, +-\frac{1}{7}, +-\frac{1}{14},+-\frac{2}{1}, +-\frac{2}{2}, +-\frac{2}{7}, +-\frac{2}{14}

+-1, +-\frac{1}{2}, +-\frac{1}{7}, +-\frac{1}{14},+-2, +-1 , +-\frac{2}{7}, +-\frac{1}{2}

We ignore the zeros that are repeating

+-1, +-2, +-\frac{1}{2}, +-\frac{1}{7}, +-\frac{1}{14}, +-\frac{2}{7}

Option A is correct


6 0
3 years ago
Read 2 more answers
Which of the following is a nonlinear function?​
mars1129 [50]

The answer is

A. Linda has $1,500 in a bank account that pays 3% annual interest.

3 0
3 years ago
The entire rectangle below has an area of .
Nastasia [14]

Answer:

Hence the required ans. Is 24cm2.

Step-by-step explanation:

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