Question

I need some help with Algebra please!
What is the simplified form of each expression?

1. –(10)–1 (1 point)
-1/10
-1/1 10
1/10
10
2. 1/c -5 (1 point)
c5
5c
–c5
– 5/ c
3. What is the value of y-5/x -3 for x = 2 and y = –4? (1 point)
10/3
128
–1/128
–128

Answer 1

I'll medal whoever can help me out i need to turn this in asap and i am absolutely terrible at math but cant let my grade get any lower, anyone that goes to indiana connections help me out please!

Answer 2

I know number one is 10. I don't understand the others though.

Answer 3

\[\large\rm -(10)^{-1}\]Is this the first one? :o

Answer 4

Recall that for negative exponents we have this going on\[\large\rm x^{-a}=\frac{1}{x^a}\]And,\[\large\rm \frac{1}{x^{-b}}=x^b\]

Answer 5

if it is then 10 won't be the answer it would be -1/10

Answer 6

how are you doing that? i couldn't put the questions in correctly thats why there kind of hard to figure out what im asking

Answer 7

but yes that is the first one

Answer 8

The equation tool. It takes a little getting used to though :)

Answer 9

\[\frac{ 1 }{ c } ^{-5}\] well then this would be question #2 but the exponet on the bottom not the top lol i attempted to use the equation tool

Answer 10

So use the second rule I posted :)

Answer 11

Apply the exponent rule to your 10, flip it in order to change the exponent to positive.\[\large\rm -(10)^{-1}=-\frac{1}{(10)^{+1}}=-\frac{1}{10}\]You were fine with the first one?

Answer 12

Oh okay thank you, would number 2 be -c5?

Answer 13

To get rid of the negative on the exponent,
flip the c up to the numerator,\[\large\rm \frac{1}{c^{-5}}=\frac{c^{+5}}{1}=c^5\]Be careful with this though,
I'm NOT exchanging the c and 1.
I'm only moving the c.

Example, if this had been your problem:\[\large\rm \frac{2}{c^{-5}}\]It would become\[\large\rm \frac{2c^{+5}}{1}=2c^5\]You're just flipping the c up to the numerator, and the exponent changes to positive. All that's left in the bottom is a 1 pretty much.

Answer 14

So it would be \[c^{5}\] not \[-c^{5}\]

Answer 15

correct :)

Answer 16

Thank you so much! Do you think you can help me with number 3 as well?

Answer 17

Apply your exponent rule to each of these BEFORE you plug the values in.