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No the asker means a quadrilateral.  (that is what I would call it anyway)  Those are the langth of the sides.

When I was at school, many moons ago, our 'play areas' were bordered by 4 buildings.

These were referred to as quadrangles.  (literally 4 anlges)

Each year of students had a different quadrangle in which we were meant to be.

I put 'play area' in inverted commas becasue we were not allowed to play.

It was an all girls school and we were expected to behave like 'ladies' 

Some of you kids do not know how lucky you are.  LOL

What is a quadrangle? Do you mean Angel?

In all seriousness you can't. There are several areas just think about it. You need the diagonal length or some angles need to be right angles.

Assuming that there is a 13th floor, there are 6 levels.

Since each level is 2.5 m, there is a total distance of 6 x 2.5 = 15 meters.

Since it takes 3 seconds, its speed is 15 meters / 3 seconds = 5 m/s

breeding a Ww with a ww you can get     Ww, Ww, ww, ww

Ww will be white and ww will be yellow

so 50% are expected to be yellow.    

Nice work guest, let's see if I get the same answer  

How many positive three-digit integers less than 500 have at least two digits that are the same?

how many have the units and tens digit the same?   10*4 = 40

How many have the units and hudreds the same?     4*10=40

How many have the tens and hudreds the same?     4*10=40

How many have all 3 the same?    4 (must subtract twice becasue it has already been counted 3 times)

so how many have at least 2 the same = 120-8 = 112

I have an answer but I am a little dubious about it.

I have looked back at your history and you have never once interacted with or thanked and answerer. (interaction is more important than thanks)

Some of the answers provided led to discussions between 2 or more answerers.  You never got involved.

You have given an answerer a point only once.

So it apprears that you are not really interested in learning from your answers or leaving any good impression on the other answerers here.

Perhaps you should change your attitude if you want help to continue being given.

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I know you have answered a couple of questions for other people and I thank you for that.

Today we can set as day 'n'.

Each week, his vocab doubles, so on the next week the day would be 'n + 7', and his vocab would be 2(30).

For 'x' weeks, the day would be n + 7x. The vocabulary corresponding to that would be 30 * 2x.

You can do the job of writing the function rule.

:D hope it helps

The suplement is "180 - that angle" degrees. Its complement is "90 - that angle" degrees. If "that angle" is "x" degrees, then our equation is: \(180 - x = 6(90 - x)\) Simplifying, we can get:

\(180 - x = 540 - 6x\)

\(5x = 360\)

\(x = 72\)

The measure of an angle who's supplement is 6x its complement is 72 degrees.

100  101  110  111  112  113  114  115  116  117  118  119  121  122  131  133  141  144  151  155  161  166  171  177  181  188  191  199  200  202  211  212  220  221  222  223  224  225  226  227  228  229  232  233  242  244  252  255  262  266  272  277  282  288  292  299  300  303  311  313  322  323  330  331  332  333  334  335  336  337  338  339  343  344  353  355  363  366  373  377  383  388  393  399  400  404  411  414  422  424  433  434  440  441  442  443  444  445  446  447  448  449  454  455  464  466  474  477  484  488  494  499  Total =  112 such 3-digit integers.

(1/3) · (2/5) · (1/4)  +  (1/3) · (2/7) · (1/6)  +  (1/3) · (2/8) · (1/7)  =  the answer

Assuming that each team has the same probability of being chosen  =  1/3

Then, for that team 2 of the members are co-captains and then there is 1 co-captain left.

I would suggest:

1)  Always work hard in class and do your homework each day.

2)  Try to understand both the "how to do it" and the "why that works".

         The "why that works" seems to last longer in my brain and if I forget how to do something

          but remember the why, then (usually) I can figure out for the "how."

3)  If possible, work with someone. Usually, this makes the work more enjoyable and if you

         can't do something, the other person (or persons) may be able to explain what you

         need to do.  Also, if you explain something to someone else, it will remain clearer

         in your mind.

4)  Know all the arithmetic facts (addition, subtraction, multiplication, division tables).

      This will allow you to concentrate on the new stuff without having to spend most of your

      time trying to figure out the old stuff.

5)  Try to understand how the math represents the world. Some students try to memorize 

      geometric facts (parallel lines, corresponding angles, etc) where they could just look around

      the room and see examples of them. 

Good luck!

Parabola written in vertex form

a = -1    h = -2     k = 4      vertex = -2,4

invert it

Sub in a value for 'x'  and calculate the corresponding 'y' value for the other point

1153₆ 

Thanks Tiggsy,

That makes sense.  

Hi Melody

I've taken a look at that youtube link and I think that they've chosen a really dreadful proof, it's so much easier than that.

Here's the way I look at it.

Using their diagram, chord AC, tangent at A, start by drawing the diameter of the circle at  A meeting the circle again at D.

Triangle ACD will be a right angled, with the right angle at C and so the angle CDA will equal the angle between the chord and the tangent, (a couple of subtractions from 90 deg).

 Now, since angles on the same arc are equal, angle ABC will equal angle angle CDA for any B in the same segment of the circle as D.

Tiggsy