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3 years ago

12

Students measure the length of their feet in inches. The data is shown in the frequency table below. If the data were displayed

in a dot plot, which of the measures would not be 11? (Check all that apply.)
Foot Length Tally Frequency

9 || 2

10 ||| 3

11 ||||| 5

12 | 1

range

mode

median

mean

2 answers:

IrinaK [193]3 years ago

4 0

this is not an answer but are you doing 6th-grade monarch????????? meeeee tooooo if so

skelet666 [1.2K]3 years ago

3 0

Answer:

Step-by-step explanation:

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Probability, pleaseeeeeeeee help!

balu736 [363]

Answer:

24

Step-by-step explanation:

You don't really need to do a permutation here. We know that there are 4 options for digits and three places so therefore we have 4 choices for the first digit, 3 for the second and 2 for the last so the answer is 4 * 3 * 2 = 24.

3 0

3 years ago

1. Given (x) =1/2(x + 4)(x – 11), use your graphing calculator to graph this function and

marin [14]

Here are my answers!
the only one i’m not completely sure of is #4 but i’m assuming it’s where the function is above and below the x-axis

6 0

3 years ago

Let H and K be subgroups of a group G, and let g be an element of G. The set <img src="https://tex.z-dn.net/?f=%5Cmath%20HgK%20%

34kurt

Answer:

Yes, double cosets partition G.

Step-by-step explanation:

We are going to define a <em>relation</em> over the elements of G.

Let $x,y\in G$ . We say that $x\sim y$ if, and only if, $y\in HxK$ , or, equivalently, if $y=hxk$ , for some $h\in H, k\in K$ .

This defines an <em>equivalence relation over </em><em>G</em>, that is, this relation is <em>reflexive, symmetric and transitive:</em>

Reflexivity: ( $x\sim x$ for all $x\in G$ .) Note that we can write $x=exe$ , where $e$ is the <em>identity element</em>, so $e\in H,K$ and then $x\in HxK$ . Therefore, $x\sim x$ .
Symmetry: (If $x\sim y$ then $y\sim x$ .) If $x\sim y$ then $y=hxk$ for some $h\in H$ and $k\in K$ . Multiplying by the inverses of h and k we get that $x=h^{-1}yk^{-1}$ and is known that $h^{-1}\in H$ and $k^{-1}\in K$ . This means that $x\in HyK$ or, equivalently, $y\sim x$ .

Transitivity: (If $x\sim y$ and $y\sim z$ , then $x\sim z$ .) If $x\sim y$ and $y\sim z$ , then there exists $h_1,h_2\in H$ and $k_1,k_2\in K$ such that $y=h_1xk_1$ and $z=h_2yk_2$ . Then, $\\ z=h_2yk_2=h_2(h_1xk_1)k_2=(h_2h_1)x(k_1k_2)=h_3xk_3$ where $h_3=h_2h_1\in H$ and $k_3=k_1k_2\in K$ . Consequently, $z\sim x$ .

Now that we prove that the relation " $\sim$ " is an equivalence over G, we use the fact that the <em>different equivalence classes partition </em><em>G.</em><em> </em>Since the equivalence classes are defined by $[x]=\{y\in G\colon x\sim y\} =\{y\in G \colon y=hgk\ \text{for some } h\in H, k\in K \}=HxK$ , then we're done.

5 0

3 years ago

Yoko bought 22 pounds of flour for $9. How many dollars did she pay per pound of flour?

kirill115 [55]

Answer:

$0.41

Step-by-step explanation:

"per pound" tells you the the pounds should go on the bottom of a fraction (ratio, division)

see image. Divide to find the answer.

5 0

2 years ago

If a data set has only 1 outlier which value will always change when the outlier is excluded

blagie [28]

The median may stay the same.

The range will always change.

I dont think the last 2 will always change.

7 0

3 years ago