Question

Which expression represents the product of 6.5*10*4 and 2.4*10*3

Answer 1

how do you get 1.56 instead of 15.6

Answer 2

\[6.5\times10^4 \times 2.4\times10^3\]\[=6.5 \times 2.4\times10^4 \times10^3\]\[=(6.5\times2.4)\times10^{4+3}\]\[=\cdots\]

Answer 3

yeah i kno when u multiply 6.5X2.4 ull get 15.6 but the right answer is 1.56 how??

Answer 4

\[=15.6\times10^{4+3}\]
\[=1.56\times10^{4+3+1}\]

Answer 5

and how come the exponents are 8 instead of seven im soo confused please help i have regents after an hour

Answer 6

but why did u change 15.6 into 1.56

Answer 7

why . because scientific notation has only one number before the decimal point,

Answer 8

OMG thank yuhhh so in scientific notation theres always one number before the decimal point :D ?

Answer 9

ALWAYS??

Answer 10

yeah,

Answer 11

thank yuh then why do you add 1 to the exponent

Answer 12

why isnt 10^7 ?

Answer 13

??

Answer 14

\[=15.6\times10^{7}\]\[=\frac{15.6}{10}\times10\times 10^7\]\[=1.56\times10^{7+1}\]

Answer 15

so you allways add one to the exponent

Answer 16

well if you had
\[100.\]
and you wanted to represent in scientific notation
\[100.=100.\times1\]\[=100\times10^0=10^2\times10^0\]\[=1\times10^{2+0}=1\times10^2\]

Answer 17

im sooo confused imma fail regents :((

Answer 18

or \[44.8=4.48\times10^1\]

or\[5500.0=55.000\times10^3=5.5000\times10^2\]

Answer 19

each decimal place represents a factor of ten
dec-i-mal means tenth

Answer 20

ohhhhhh so ok can you try to give me problem and ill try to solve cuz i think i need a little practice

Answer 21

who would you write 501 in scientific notation

Answer 22

how*

Answer 23

there is an invisible decimal point directly right of the 1

Answer 24

5.01X10^2

Answer 25

yep too easy huh?

Answer 26

OMG yess you just saved my life

Answer 27

then how do you write the scientific notation thing into regular form

Answer 28

\[5.002\times10^4=5.002\times10\times10\times10\times10=50020.\]

Answer 29

then how do u get negative exponents?? and sorry if im wasting your time

Answer 30

write

\[9.80532\times10^1+2\times 10^{-5}\]in regular notation

Answer 31

\[8\times10^{-2}=0.08\]
\[3.2\times10^{-3}=0.0032\]

Answer 32

negative exponent means the decimal moves to the left .

Answer 33

ohhhhhhhhhh

Answer 34

can i ask another question

Answer 35

\[100=1\times10^2\]\[10=1\times10^1\]\[1=1\times10^0\]\[0.1=1\times10^{-1}\]\[0.01=1\times10^{-2}\]

Answer 36

A company is designing a cylinder to hold marbles for a new
game it is inventing. The cylinder has a height of 18 inches
and a diameter of 6 inches. Find the volume of the cylinder
to the nearest tenth of a cubic inch.

Answer 37

do you know the area of a circle?

Answer 38

no

Answer 39

is the formula V=Pi(r)^2h