Question

what is 6.4 x 10^-8 mi/day in feet per hour? (1 mi=5280ft)

a) 8.11x10^-3ft/b
b)1.408x10^-5 ft/b
c)2.909x10^-10ft/b
d)5.05x10^-3ft/b

Answer 1

@undeadknight26

Answer 2

to me it might be B but I'm not sure :/

Answer 3

I would think B..

Answer 4

:) thx bro

Answer 5

one more o_o
and my last plz

Answer 6

Shure ladeh

Answer 7

an aveergre person in the United States throws away 4.5x10^1 kg of the trash per day. In 2013, about 3.2x10^6 people in the US.

About how many Kilograms of trash was thrown in the United Sation in 2013

5.3x10___ kg

Answer 8

I forgot how to do this stuff tbh
@freckles @HelpBlahBlahBlah @Joel_the_boss @LeeEtchison Any help here mates?

Answer 9

i have 5 mins left :( and its gonna be due

Answer 10

DO you know what these type of opperations are called?

Answer 11

dude im bad at core focus : scientific notation I'm bad at it

Answer 12

Ohhhhh dis ish scientific notation?! I know of it but havent used it ._.
And generally not in this sense....

Answer 13

-.- imma put a random answer

Answer 14

damn i made a 60

Answer 15

@arabpride @Secret-Ninja You are some of the smartest chics i know...any input?

Answer 16

gtg bro its fine

Answer 17

Sorry mate D:
Im horrible myself at scientific notations within this sense...
Honestly never learned it like this XD

Answer 18

To write a number in scientific notation: Put the decimal after the first digit and drop the zeroes. To find the exponent count the number of places from the decimal to the end of the number.

Answer 19

Thats all I know. :/ (Because I googled it) Sorry!

Answer 20

Maths is ~ ughz - idek -im too yuggh tired- good luck in stuffs xP

Answer 21

I didn't know @arabpride was a girl. :p You always had some random picture of a baby so lol idk. XD

Answer 22

LOLZ "random picture of a baby" was my nephew cx and i have NO clue why everyone thinks imma d00d ~

Answer 23

@Secret-Ninja

Answer 24

Lol XD I gtg bye peeps. :)

Answer 25

what is 6.4 x 10^-8 mi/day in feet per hour? (1 mi=5280ft)

\[6.4 \cdot 10^{-8} \frac{miles}{day} \cdot \frac{5280 ft}{1 miles} \cdot \frac{1 day}{ 24 hours}\]
since 5280ft=1mi and 1day=24 hours

Answer 26

the miles unit will cancel and you will have ft on top
and the day unit will will cancel and you will have hours on bottom

Answer 27

you just got to play with the multiplication and division there

Answer 28

for the number part

Answer 29

\[\frac{6.4 \cdot 5280 }{24} \times 10^{-8} \frac{ ft}{hour}\]

Answer 30

oh there is another question about trash
i would set up a ratio

Answer 31

\[\frac{x kg}{3.2 \times 10^6 people}=\frac{4.5 \times 10 kg}{1 people} \\ x (kg-people)= 4.5 \times 10 \cdot 3.2 \times 10^6 (kg-people) \\ x=4.5 \cdot 3.2 \cdot 10^{1+6}\]
the fraction was setup as x amount of trash from 3.2*10^6 people
is equal to 4.5*10 amount of trash from 1 person

Answer 32

just so you know that x was found kg/day
you will need to convert that to kg/year :)
since it said thrown out for the year 2013