# Posts by ollie

Total # Posts: 25

**Proofing Maths**

Is is possible to proof that |x-y| ? |x|+|y|?

*December 26, 2016*

**Proofing Maths**

Prove that |x+y+z| is less than or equal to |x|+|y|+|z|. Please try to show working and explain

*December 26, 2016*

**math**

1. Name a pair of complementary angles. (1 point) angle sign1 and angle sign4 angle sign1 and angle sign2 .. angle sign3 and angle sign4 angle sign1 and angle sign6 2. If mangle sign1 = 37°, what is the measure of angle sign4? (1 point) 53° 43° 37° .. 27° 3...

*April 15, 2015*

**Science Check Please**

They are all correct except 3, 9, and 12 (i know you posted this a year ago this is for people who are looking at it for answers)

*March 23, 2015*

**Science question?**

Im in connexus.

*May 2, 2014*

**math**

How many different integers, n, are there such that the difference between 2 x n squared and 7 is less than 1? The supposed answer is 6 but i have NO idea how that's possible??

*April 11, 2014*

**Chemistry**

how did you find OH? we aren't allowed to use a calculator and the answer book is saying the pH is 7, not 12

*April 8, 2014*

**chem HARD**

thank you!!!

*April 7, 2014*

**chem HARD**

can anyone explain to me why LiCO3 is NOT a lithium compound? and what exactly is needed for lithium compounds?? thanks!

*April 7, 2014*

**chem**

thanks! where is the 136 coming from tho??

*April 7, 2014*

**chem**

sodium chloride (relative molecular mass = 58.5) had a solubility of 36.0 g per 100g of water. the density of the solution is 1.13 g/ml. which of the following calculations would give te solubility in moles per liter? A) 36.0 x 10/58.5 b) 36.0 x 10 x 1.13/(58.5 x 136) c) 36.0 ...

*April 7, 2014*

**science**

The answers are B D C B 100%, just took the quick check. Don't trust the other answers. They are wrong. Good luck :)

*February 27, 2014*

**Maths**

Can you please tell me what TU means at the top of my sums eg., and do I put the sums answer in the circle between the sums and add the answer onto the next sums answer? TU TU 23 15 16+ 0 17+ ___ __ ___ __

*January 21, 2014*

**math**

Let d be the difference between terms. Let x be the first term. The second term will be x + d. The third term will be x + 2d. Fourth term will be x + 3d. But the fourth term is 20, so x + 3d = 20. Continue this until you get the eighth term. Write an equation about the eighth ...

*April 6, 2013*

**Math Systems**

problem 1 in the equation x - y = 1, solve for x in terms of y. replace x in either of the other two equations and you will be able to solve for x. Now, you can go back to any of the three equations and replace x with the value you found and solve for y. Check that your ...

*April 6, 2013*

**math**

Reduce 10/20 then cross multiply.

*April 6, 2013*

**math**

substitute -3 for every x in f(x) and simplify.

*April 6, 2013*

**math**

notice in 2, 9, 16, 23, .... each number is seven more than the previous one did you have a question about 6, 12, 9, 18, ... ?

*April 6, 2013*

**math**

Please Check that the given information is complete. There is not information right now to answer your question.

*April 6, 2013*

**math**

First make a table to show input and output. IN. OUT 0. 2 1. 4 2. 6 .. .. Notice that the difference between outputs is 2. But 2 times each input does NOT give the correct output. However, if you add 2 to the product of 2 and input, you get the correct output. Therefore, the ...

*April 6, 2013*

**SraJMcGin-biology**

just wanted to say thankyou :)

*July 9, 2011*

**biology**

1.explain how the code that is found in the organism`s genes works 2.describe how the genetic code controls the production of proteins 3.find diagrams to help explain thankyou!

*July 9, 2011*

**science**

what other features ncan a gas that is collourless at room temperature have??

*October 1, 2008*

**year 7 music**

explanation of musical chords and an example. thanks for help.

*April 26, 2008*

**Physic**

an someone please help me out on this... An ideal transformer has 50 turns in its primary and 250 turns in its secondary. 12 V ac is connected to the primary. Find: 1. The volts ac available at the secondary 2. Current in the 10 device connected to t he secondary 3. ...

*November 2, 2007*

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