Need some help with school? You’ve come to the right place!
Welcome to the Training Hollow, where you can get help from or help others with their academics! If you can’t quite understand something you learned in school or you’re stuck on a particular question, ask away for help on this page! There’s just one pretty important rule to follow on this page:
NO ACADEMIC FRAUD!
Academic fraud means cheating on your quizzes, tests, labs, and assignments by using answer keys or by purely copying another person’s work (aka plagiarism). Please do all of your work by yourself! Even if someone gives you the step-by-step solution, do it again yourself so you can understand how the solution was reached or why something specific was done in a specific step.
To those wishing to help others, try to focus more on helping the BlogClanner reach the answer themselves 🙂 Teach them the methods or reasoning that’ll lead to the solution. Just giving them the answer might not teach them how to do similar questions in the future!
As the old saying goes,
Give a man a fish, and he eats for a day. Teach a man to fish, and he eats for a lifetime.
Evolved from the writings of Anne Isabella Thackeray Ritchie
![[an orange tabby cat stares at a sheet of math exercises]](https://blogclan.katecary.co.uk/wp-content/uploads/2023/06/orange-cat-homework-PhilHarvey911.webp)
[image description: an orange tabby cat stares at a sheet of math exercises while holding a mechanical pencil]
Yo! Anyone here love netball? im trying out for the school team and i dont know if ill be able to make friends there, any tips? (also my arch nemesis plays netball to and so do her minions how do i avoid them?)
I don’t play netball, sorry 🙁 .
I don’t play netball, but what position do you usually play?
To make friends, talk with someone there. You can get started by saying hello to someone.
Okay so maybe this is a dumb question but you know have humans have 46 chromosomes? Well we have like 3 trillion cells and every cell has DNA/chromosomes so… how does that work 😛
Size in our universe is too inconceivable for the human brain to understand. From the smallest atom to the largest galaxy. /lhj
iirc chromosomes are what make up our dna, so those 46 chromosomes are found in each and everyone of our cells! if cells are the building blocks of biological matter then chromosomes are the building blocks of those and in short can determine many of our physical traits, if that helps to think about :)) although take all of this with a grain of salt because I learned this last year in science and forgot half of the things I learned👍
Wait I just reread this and it said “each and everyone of our cells” 😭 Why did I not see that earlier—
Don’t worry, it’s not a dumb question. I don’t even know what chromoscopes are 😛
All those things you listed are extremely tiny, but not as tiny as atoms. Tiny things are what build up to larger things, just like life
WHAT—
Um Wills no offense but I feel like the whole philosophical thing kinda backfired 😛
sorry, what?
WHA…..WHAT IS…. HOW THE…….’Brain explodes’
Every human cell, with the exception of sperm and egg cells that are produced during fertilisation, has 46 chromosomes each. All chromosomes are paired, and they are called homologous chromosomes. The 23 homologous chromosomes consist of 22 pairs of autosomes and 1 pair of sex chromosomes.
Wait, EVERY cell?!??!?!!?!!?! 🤯🤯🤯🤯🤯🤯🤯🤯
IN ALL THE MITOSIS DIAGRAMS THEY SAID ALL THE CELLS ONLY HAD LIKE TWO CHROMOSOMES
I HAVE BEEN LIED TO
The diagrams and pictures in textbooks are simplified versions of the actual cell.
T^T T^T Okay I see the logic in that but still
GUYS! I NEED SERIOUS HELP WITH SMTH! I don’t know how to simplify algebraic exp.
For example, “simplify this expression”
2x (9+5) -8x 7 (x+ x squared)
Cookies or advice please?
First, you should apply distributive property. That means expanding the brackets, or multiplying whatever is right outside the brackets with whatever is inside (brackets usually mean multiplication). (Don’t forget to multipy the signs as well. If you have a negative term outside the brackets, then you need to multiply the signs of the inside terms too. Also, remember that if you have a variable multiplied by the same variable, the powers add up.)
Then, once you’ve opened up the brackets, you add up like terms, and that is your simplified equation.
As an example, let’s take 5(4x + 3) – 3x(-x + 2).
Step One: apply distributive property
5(4x) + 5(3) + (-3x)(-x) + (-3x)(2)
20x + 15 + (+3x²) + (-6x)
20x + 15 + 3x² – 6x
Step Two: add like terms
3x^2 + 20x – 6x + 15 (grouping like terms)
3x^2 + 14x +15 (<– final simplified equation)
(This was a really long form version to show what I mean. It’s easier to expand brackets, multiply signs, or group like terms without writing it all out, but I did it for the sake of clarity.)
Hope this helps! Let me know if you have any questions :)) (also, for everyone, please point out any mistakes if you find them)
This clarifies it a whole lot! Thank you a ton!
Glad I could help, you’re welcome! 🙂
uhhhhh ✨order of operations✨
PEMDAS
p – parentheses
e – exponents
m – multiplication
d – division
a – addition
s – subtraction
– if there are multiplication and division, do both at the same time working left to right. same with addition and subtraction
– you can remember this by a mnemonic like ‘please excuse my dear aunt sally’ or something goofy like that, my personal fave is ‘pizza exists; monkeys demand a slice’
using your example problem:
2x(9+5) – 8x + 7(x + x2) (pretend it’s a tiny two bear with me)
solve and simplify parentheses so:
2x(14) – 8x + 7(x + x2)
then exponents, unless we know the variable x not much we can do
then multiplication, so:
28x – 8x + 7x + 7(x2)
there’s no division, so then it’s addition and subtraction, working left to right:
20x + 7x + 7(x2)
27x + 7(x2)
or in words, twenty-seven x plus seven x squared!
edit – i fact-checked my work and the feeling of accomplishment after getting something right you haven’t done in two years is kind of awesome
Algebra is the worst ngl. Hopefully I remember this correctly lol.
To simplify an expression, you write it in its simplest form, by taking out parentheses and combining like terms.
Following the order of operations, the first step is to simplify inside the parentheses. This yields 2x(14) – 8 x 7(x + x squared).
Next up is multiplication, which yields 28x – 56(x + x squared).
Now, you need to get rid of the x + x squared part. To do this, you distribute -56 into both x and x squared. Thus, 28x – 56x – 56x squared.
Next you combine like terms. 28x and 56x are alike, so do the subtraction, which yields -28x. Now you have -28x – 56x squared, which is the simplified form of the expression. (Some schools require you to rearrange the expression so the larger number comes first, which would be -56x squared – 28x, but others don’t, check with your teacher.)
Hope this helps!
I’m in sixth grade algebra, but maybe they mean combine like terms?
Don’t trust me unless someone seconds this, I’m a B kid 😛
I am in sixth grade, and the stuff here is easy for me lol ( I may or may not be doing college level school)
Same, lol
I’m in 8th grade algebra, I might be able to help with this!
So the equation is 2x (9+5) – 8×7 (x+x^2) right?
(is -8×7 one number?)
You have to use distributive property and the order of operations for this. First, the parentheses. 9 + 5 equals fourteen, and 14 x 2x is the same as 14 x 2 x x. So, simplified, 28x!
On the other side, I would recommend using distributive property. – 8×7 x x + – 8×7 x x^2. by multiplying both x on each size you would get -8x^2 7 + -8x^3 7 respectively, or -8x^2 7 – 8x^3 7.
Then you merge the two parts back together: 28x – 8x^2 7 – 8x^3 7 would be the simplified version.
Hope this helps, and feel free to ask any further questions 🙂
Oooohhh…. I see know. Thank you SO MUCH!
Glad to help!
hold on, I typed this comment late and realized I did something wrong, 7 x 8 = 56! Then you distribute 🙂
is this the equation? 2x(9+5)-8x+7(x+x^2)? if so, firstly, you would take 2x and distribute it across to the 9 then the 5 in the first set of parenthesis. that would get you 18x+10x. keep the -8x. then take 7 and distribute it to the x and x^2, which would give you 7x+7x^2. then you take all the components and put them together, like so: 18x+10x-8x+7x+7x^2. and lastly, you’d combine like terms, like frogpaw said!! so 18x+10x-8x+7x, then keep the 7x^2 the way it is because you can’t combine it with anything here. that should get you the simplified expression :> ember also explained this really well! 😀 i don’t want to outright give you the answer because i totally think you got this, but if you’d like me to just ask!! :>
also it may or may not be 11pm rn so if you find any mistakes, just tell me 😛I love how all of us that did the equation step by step got a different answer😭
lmao help 😭😭 i think either i misinterpreted the equation or i just lost my algebraic equation solving skills
that i never really had in the first place but whatever😔💀💀True 😭 I did another example expression, but it’s so funny to see all the different answers people got. I think a big reason is that the “-8x 7” part was kind of confusing, and different people interpreted it differently (which was a big reason for why I used another expression 😛)
Yeah I messed up the first time 😭
I got 98 – 4x, I was too lazy to write an explanation since it is 11:45 where I am, but idk………. Uhhhhhh, I think my brain just lost train of thought… Idk what I was about to say 😅🥲💀… .. …. …
Explanation
Use the distributive property to multiply 2x through the parentheses
Combine the like terms
Steps
2x(9+5) – 8x + 7(x^2) = 2x(14) – 8x + 7(x^2)
= 28x – 8x + 7(x^2)
= 20x + 7(x^2)
So the simplified expression is 20x + 7(x^2).
Still INFINITY X COOKIES
uhhhhh ✨order of operations✨
PEMDAS
p – parentheses
e – exponents
m – multiplication
d – division
a – addition
s – subtraction
– if there are multiplication and division, do both at the same time working left to right. same with addition and subtraction
– you can remember this by a mnemonic like ‘please excuse my dear aunt sally’ or something goofy like that, my personal fave is ‘pizza exists=monkeys demand a slice’
using your example problem:
2x(9+5) – 8x + 7(x + x2) (pretend it’s a tiny two bear with me)
solve and simplify parentheses so:
2x(14) – 8x + 7(x + x2)
then exponents, unless we know the variable x not much we can do
then multiplication, so:
28x – 8x + 7x + 7(x2)
there’s no division, so then it’s addition and subtraction, working left to right:
20x + 7x + 7(x2)
27x + 7(x2)
OR
To simplify the expression 2x(9 + 5) – 8×7(x^2), you can follow these steps:
1. Use the distributive property to simplify the parentheses
2. Add or subtract like terms
3. Use exponent rules to simplify terms with exponents
Explanation
To simplify an expression, you can follow the order of operations. This means simplifying the parentheses first, then adding or subtracting like terms.
Step 1
Use the distributive property to simplify the parentheses
2x(9 + 5) – 8×7(x^2) = 2x(14) – 8×7(x^2)
Step 2
Add or subtract like terms
2x(14) – 8×7(x^2) = 28x – 8×7(x^2)
Step 3
Use exponent rules to simplify terms with exponents
28x – 8×7(x^2) = 28x – 8x7x^2
OR
You can also watch videos on YouTube about simplifying expressions.
Simple right?
Hi, I’m Hollyleaf from Powerofthree. Does anyone here play volleyball? I’m new to volleyball, so I could really use some tips.
I didn’t know Hollyleaf played volleyball! Nah, I don’t play it, sorry
hi! don’t play volleyball nor have any tips, but i hope you do well! i’m just kinda curious about your name! i remember once you introduced yourself as lionblaze, and now hollyleaf. nothing against it i think it’s rlly cool but like how does that work? 😛/lh
Hi, can anyone please give me some math explanations please?
So basically, anything to the power of 0 = 1, how does that work?
Thank you very much!!!🦭
A number to the power of 0 is equal to 1 because of the division rule of exponents. a^n/a^n=1 because any value divided by itself is 1. (I do not understand this either!)
I don’t really understand it either :p but I like to think of it as ykw how it’s like if it’s to the power of two you times it by itself and so on? And finding the square root of for example, 49, is kind of dividing by 7 to get 7 (if you memorized it) so I think of it as if it’s to the power of one and you go one lower, then you divide by 7 from 7, then you get one
Idk if you understand that bundle of words good for you Idk if that makes sense but logic doesn’t exist and at least, that’s how I think of it
I don’t have time to write a huge explanation, but I believe it helps to think that a^0 (a = any number) is equal to a / a, which equals 1!
Similarly, a^1 is a multiplied by nothing, then a^2 is a squared, a cubed, and so on. It works negatively too: a^-1 is 1/a, then a^-1 is equal to 1/a squared, and so on.
Hope this helps!!
Could anyone explain how to read the following guitar Tab sheet? I’m not sure what the angle brackets (= less than/greater than symbols) mean here, and I haven’t seen any decimals in tab sheets before.
https://postimg.cc/wR7X5kpR
From what I know, a number in brackets means it’s a ghost note. I may be wrong though 🙂
I don’t know what a decimal in tabs means though haha