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VMariaS [17]
3 years ago
11

What are the subsets of the set {7, 8, 9}?

Mathematics
1 answer:
torisob [31]3 years ago
7 0
The subsets of {7,8,9} are:
∅
{7}
{8}
{9}
{7,8}
{7,9}
{8,9}
{7,8,9}.
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Write down how you skip-count by ten from 350 to 240
Mamont248 [21]

Answer: 350,340,330,320,310,300,290,280,270,260,250,240.


Step-by-step explanation:

To solve this exercise you must keep on mind the following information:

1. By definition skip counting is about counting by a number which is not the number 1.

2. Skip counting by ten from 350 to 240 means that you need to subtract 10 to a number to find the other one.

3. Therefore, you must subtract 10 to 350 and then you need to do this over and over again until you get 240.

7 0
3 years ago
Find the value of x.<br> When a leg is 6<br> units and the<br> hypotenuse is 12<br> units.
DIA [1.3K]

Answer:

6√3

Step-by-step explanation:

6^2+x^2=12^2

36+x^2=144

-36          -36

x^2=108

x=6√3

3 0
3 years ago
Please help!<br><br> Find the measure of the angle labeled with the question mark.
zmey [24]

Answer:

it is 125°

Step-by-step explanation:

alternate interior angles are equal

7 0
3 years ago
Let v1 =(-6,4) and v2=(-3,6) compute the following what i sthe angle between v1 and v2
Agata [3.3K]
\bf ~~~~~~~~~~~~\textit{angle between two vectors }&#10;\\\\&#10;cos(\theta)=\cfrac{\stackrel{\textit{dot product}}{u \cdot v}}{\stackrel{\textit{magnitude product}}{||u||~||v||}} \implies &#10;\measuredangle \theta = cos^{-1}\left(\cfrac{u \cdot v}{||u||~||v||}\right)\\\\&#10;-------------------------------

\bf \begin{cases}&#10;v1=\ \textless \ -6,4\ \textgreater \ \\&#10;v2=\ \textless \ -3,6\ \textgreater \ \\&#10;------------\\&#10;v1\cdot v2=(-6\cdot -3)+(4\cdot 6)\\&#10;\qquad \qquad 42\\&#10;||v1||=\sqrt{(-6)^2+4^2}\\&#10;\qquad \sqrt{52}\\&#10;||v2||=\sqrt{(-3)^2+6^2}\\&#10;\qquad \sqrt{45}&#10;\end{cases}\implies \measuredangle \theta =cos^{-1}\left( \cfrac{42}{\sqrt{52}\cdot \sqrt{45}} \right)&#10;\\\\\\&#10;\measuredangle \theta =cos^{-1}\left(  \cfrac{42}{\sqrt{2340}} \right)\implies \measuredangle \theta \approx 29.74488129694^o
8 0
3 years ago
Which expression could be used to evaluate the expression below?
svetoff [14.1K]

Answer:

D. 4 x -2 - 7/8

Step-by-step explanation:

4 x -2 7/8

2 7/8 can be separated into 2 pieces 2 +7/8

4x - (2+7/8)

Distribute the minus sign

4x - 2 -7/8

5 0
3 years ago
Read 2 more answers
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