Question

simplify 7+5^2

Answer 1

i think i multiply 5x5 than add 7

Answer 2

let's start with \[5^2\]
do you know what that equals?

Answer 3

yep you got it!

Answer 4

thanks i got 32

Answer 5

that's what I got too =)

Answer 6

i need help on this one if you willing to help

Answer 7

the given symbol expression.
Twenty five squared divided by five cubed.
Evaluate it

Answer 8

\[\frac{25^2}{25^3}\]
?

Answer 9

i got 25^2 divide symbol 5^4

Answer 10

\[\frac{25^2}{5^3}\]

Answer 11

cubed is ^3

Answer 12

oh so 25^2/ 5^3

Answer 13

how do i evaluate it

Answer 14

25x25 and 5x5x5

Answer 15

Yep :)
what i would do it write the denominator (bottom) in terms of 25
so since
\[\frac{25^2}{25\times 5}\]

Answer 16

well 25x25=625

Answer 17

we can cross out the 25 in the bottom with one of the 25's on top
so
\[\frac{25^\cancel{2}}{\cancel{25}\times 5}\]

Answer 18

it also says type exponential notation with positive exponents after writing the expression

Answer 19

you could multiply \[25^2\] out, but that would make it more complicated.
Do you see what I did there?
So now we have left
\[\frac{25}{5}=5\]

Answer 20

so oh i see 625 divide by 25 = 25/5=5

Answer 21

yep. That's it!

Answer 22

what is type exponential notation with positve exponents

Answer 23

i see how we set up the written problem but is that the only way to set it up

Answer 24

oh ok well thanks do you have time for another one

Answer 25

sure. write close this one and write it on the left.

Answer 26

I mean close this question and write the new question on the left

Answer 27

ok

Answer 28

<---can I have a medal?

Answer 29

=)

Answer 30

the table list the percentage of households that were 3 person households during selected years.
year 1970, 1980, 1990,2000
% 17.3, 17.3, 17.1, 16.9

What is percentage for 2000?
Calculate the average percentage ?

Answer 31

i have for 2000is 16.9
and average 17%

Answer 32

oh i had to round the average 3 places

Answer 33

sorry I walked away for a moment. I'll be back in 5 mins sry

Answer 34

k

Answer 35

the average percentage is
\[\frac{17.3+17.3+17.1+16.9}{4}=\]

Answer 36

I get 17.15

Answer 37

post the question on the left and see if people get the same answer :)