A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 4 years ago
What is the value of 1/2^2x^3y^5
for x = 2 and y = 4?
16
–4
–1/32
–16
anonymous
 4 years ago
What is the value of 1/2^2x^3y^5 for x = 2 and y = 4? 16 –4 –1/32 –16

This Question is Closed

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Can you make a stab at it or do you need it explained from the start?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0i need it explained please...... sorry

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0No problem! Why don't you start by writing it out using Draw, so I can understand the question better, please?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1327955488648:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0x = 2 and y = 4? so plug that in

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Great, let's do that.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1327955697547:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0and i can do the math with the exponents i just need help on what i do with the 1

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Well, show me what you get with thte exponents first

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Just the answer's fine, if you think it's right, otherwise we can go through the working if it's wrong

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.02,048 for the exponents im not sure what to do with 1

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0You;re a bit off with the exponents. Let's see your working out. Then we'll get onto the 1.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Let's start with the first bit: What is this? dw:1327956095456:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Not quite. How do negative exponents work?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0im not sure i was sick when ,y teacher explained this to me and this is off my make up work

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0No problem, I'll explain it to you :D Btw "I don't know" is an excellent answer at any stage, don't be afraid of saying it!

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0The rule for negative exponents is this:dw:1327956265582:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Are you familiar with the general rule:dw:1327956314617:dw ?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0aha ok :) thank you yeah i am

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Well this just takes it a step further. 3^4=81, 3^3=27, 3^2=9, 3^1=3, 3^0=1.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0That much you understand already?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0You can see that each time, I reduced the exponent by 1, from 4 to 3 to 2 etc. And the answer got divided by three each time, so from 81 to 27 to 9 to 3 to 1.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Does that make sense?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Or shall I draw it using a picture, if that might help?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0yeah i understand what your saying

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Great! Then if I take it further, watch what happens: Reducing the exponent by 1, I get 3^1, and dividing by three on the other side I get 1/3. This continues: 3^2 = 1/9, 3^3=1/27 etc. Which is why, as you can see, 3^x=1/3^x

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Did that make sense or should I use draw?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0no it made sense i see what your sayinng

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Excellent! So now, can you tell me what 2^2 is?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0(Or would you prefer to try the whole question yourself?)

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Not quite. 2^2=4, so what is 2^2 ?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Nope, not that either :(

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0What's the rule we just looked at, for negative exponents?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1327957142206:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Did you use your computer's calculator for that or work it out yourself?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0See if you can understand the picture I've drawn for you.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0i worked it out for myslef

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0im a failure to life goodbye world im gonna kill myself

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0The rule for negative indices is this:dw:1327957460830:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Look at the rule I've given you, do you understand what I've said?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Ah well, well done for trying :)
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.