anonymous
  • anonymous
Evaluate a^2 + b for a = 1/2 and b = -1/2. -1/2 -1/4 0 1/2
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
@muscrat123
muscrat123
  • muscrat123
hang on- rr break
anonymous
  • anonymous
okay

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muscrat123
  • muscrat123
okay
anonymous
  • anonymous
i got a or b
muscrat123
  • muscrat123
y do u say that?
anonymous
  • anonymous
say what?
muscrat123
  • muscrat123
a or b
anonymous
  • anonymous
because google calculator doesnt have a fraction option so i did it in decimal and got -0.25
muscrat123
  • muscrat123
lol. dont use calculators yet
anonymous
  • anonymous
haha oh
muscrat123
  • muscrat123
|dw:1436487068293:dw|
muscrat123
  • muscrat123
.5 ^2 = ?
anonymous
  • anonymous
25
muscrat123
  • muscrat123
nope
anonymous
  • anonymous
0.25
muscrat123
  • muscrat123
yes
anonymous
  • anonymous
oh okay
muscrat123
  • muscrat123
then do ...25 + (-....5)
anonymous
  • anonymous
20?
muscrat123
  • muscrat123
no for 2 reasons not in decimal form and wrong answer and also not correct sign
anonymous
  • anonymous
oh
muscrat123
  • muscrat123
fix?
muscrat123
  • muscrat123
OK would it just b easier if i gave u the answer or do u want me to explain
anonymous
  • anonymous
please explain
muscrat123
  • muscrat123
ok. im perfectly fine w that. i ask bc most of the time when i explain, the person doesnt care and they rnt paying attn
anonymous
  • anonymous
well i no i need to learn this stuff to graduate so i try and understand
anonymous
  • anonymous
*do
muscrat123
  • muscrat123
i understand fully. what is the next ?
anonymous
  • anonymous
i dont understand the little number thing
muscrat123
  • muscrat123
?
muscrat123
  • muscrat123
little #?
anonymous
  • anonymous
\[x^{2}\]
muscrat123
  • muscrat123
exponents?
anonymous
  • anonymous
that 2 for example i dont no what to do with those
anonymous
  • anonymous
yea i that
muscrat123
  • muscrat123
when there is a # raised like that, it means to multiply the base the amount of times the exponent says|dw:1436488082351:dw|
muscrat123
  • muscrat123
lets practice
muscrat123
  • muscrat123
|dw:1436488171999:dw|
anonymous
  • anonymous
okay would that be 4 times 2 or 4 times 4 thats what confuses me
muscrat123
  • muscrat123
\[4^{2}=what?\]
muscrat123
  • muscrat123
if u multiply the base times itself the exponents many times, what do u think
anonymous
  • anonymous
16?
muscrat123
  • muscrat123
|dw:1436488302990:dw|
muscrat123
  • muscrat123
so yes
muscrat123
  • muscrat123
lets try 2 more
anonymous
  • anonymous
okay
muscrat123
  • muscrat123
|dw:1436488352735:dw|
muscrat123
  • muscrat123
\[8^{4}=what? \]
anonymous
  • anonymous
top one is 4096 other is 216
muscrat123
  • muscrat123
correct!! now lets try an example of adding, subtracting, multiplying and dividing with exponents
anonymous
  • anonymous
okay
muscrat123
  • muscrat123
we probably wont get to x and / tho
muscrat123
  • muscrat123
|dw:1436488597206:dw|
anonymous
  • anonymous
844279
muscrat123
  • muscrat123
did u use a calculator?
muscrat123
  • muscrat123
b honest
anonymous
  • anonymous
yes
anonymous
  • anonymous
i cant mutiply right of the top of my head
muscrat123
  • muscrat123
no words
muscrat123
  • muscrat123
use paper!!!
muscrat123
  • muscrat123
i havent used a calculator yet and im in 7th grade.
anonymous
  • anonymous
how do you no this stuff then?
muscrat123
  • muscrat123
bc i take college level classes
muscrat123
  • muscrat123
ive known this stuff since 3rd grade i believe
anonymous
  • anonymous
wow
muscrat123
  • muscrat123
since u used a calculator, lets try another one, but ill make it easier. USE PAPER!
anonymous
  • anonymous
haha okay
muscrat123
  • muscrat123
|dw:1436488985874:dw|
anonymous
  • anonymous
\[3\times3\times3 = 27 \]
anonymous
  • anonymous
then \[4\times4\times4\times4\times4 \]
muscrat123
  • muscrat123
yes, add them
anonymous
  • anonymous
1024
anonymous
  • anonymous
that doesnt look right
muscrat123
  • muscrat123
it would be 3 x 3 x 3 + 4 x 4 x 4 x 4 x 4 = ? and i believe u are correct, but only for 4^5
muscrat123
  • muscrat123
when u c this 4^5 ^^^^ it means it is an exponent in case u didnt know
anonymous
  • anonymous
i no that
anonymous
  • anonymous
its 27 because 3+3+3 is nine then 9 times 3 is 27
muscrat123
  • muscrat123
yes. 1024 + 27 = final answer
muscrat123
  • muscrat123
and u used PAPER right?

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