can someone help me with evaluate the expressions (-4/7)^0 and -(5)^0
any number to the power of zero is ONE so the first one is ONE
the second on is not one, because the minus sign is out front that makes the second one MINUS ONE
just 1 that's it? so the answer is 1? and how is that possible ?
how is what possible?
im sorry im so dumb at math im trying to learn im just wondering how does (-4/7)^0 turn into 1
\[b^0=1\] always
For example \[\frac{ 3^2 }{ 3^2 } = 1 = \frac{ 3^{2-2} }{ 1 } = 3^0\]
it is just notation that is all don't try to think too hard about it like "multiply a number by itself zero times" means nothing
it makes the rules of exponents consistent is all, so it is defined that way
ok can you help me with more?
A number divided by itself equals 1, following the exponent rules, you can also say a number to zero power is 1.
k
can you help me with more?
k
evaluate 10^-6 is it -60?
no it is certainly not
\[\huge b^{-n}=\frac{1}{b^n}\] \[\huge 10^{-6}=\frac{1}{10^6}\]
\[10^6=1,000,000\] so \[10^{-6}=\frac{1}{1,000,000}\]
so 1/10^6 is the answer? im trying to figure out how to solve it because my books make no since to me
yes, the answer is \(\frac{1}{10^6}\) or \(\frac{1}{1,000,000}\) or \(0.000001\)
ok what about rewrite the expression without using a negative exponent 1/6x^-5 simplify as much as possible
the minus sign in the exponent means the reciprocal if it is up, bring it down if it is down, bring it up
\[\frac{1}{6x^{-5}}=\frac{x^5}{6}\]
your awesome! finally something makes since lol I have a few more questions if you don't mind?
go ahead although i have to run soon
write p^2 (p^5) without exponents and fill in the blank p^2 (p5) =p?
without exponents?
it would just be \[ppppppp\] seven copies of \(p\)
\[p^2\times p^5=p^{2+5}=p^7\] easier to write with exponents
ok thank you only a few more im sorry for bothering you
x(x^2)(x^2) simplify
\[x^{1+2+2}=x^5\]
multiply 5v(3v^5w^3)2w^8 simplify as much as possible
\[5v(3v^5w^3)2w^8\] not sure what the parentheses are for
multiply the numbers, you get \(30\)
I just put them there because I didn't know what else to put for multiplication
add the exponents you get \[\large 30v^6w^{11}\]
simplify v^-3 (v^-9) write only with positive exponents only
Join our real-time social learning platform and learn together with your friends!