Question

Will fan and Medal!
I have no idea how to solve this it confuses me..

The sun produces 3.9 ⋅ 1033 ergs of radiant energy per second. How many ergs of radiant energy does the sun produce in 1.55 ⋅ 107 seconds?

Answer 1

@misty1212

Answer 2

is it
\[3.9\times 10^{33}\]?

Answer 3

and \(1.55\times 10^7\)?

Answer 4

yes

Answer 5

this may be confusing, so lets make it simple ok?

Answer 6

ok

Answer 7

if you drive 60 miles an hour, how far do you go in two hours?

Answer 8

120?

Answer 9

yes , and you got it by multiplying

Answer 10

yes i did

Answer 11

same idea here, you need to multiply these numbers

Answer 12

4028.7

Answer 13

\[3.9\times 10^{33}\times 1.55\times 10^7\]

Answer 14

165.85

Answer 15

i really doubt it is the answer you got

Answer 16

how to you multiply these? you do it by multiplyiing
\[3.9\times 1.55\] then adding the exponents on the powers of ten

Answer 17

\[3.9\times 1.55\times 10^{33+7}\]
\[3.9\times 1.55\times 10^{40}\]

Answer 18

i would use a calculator for the first part

Answer 19

6.045

Answer 20

right
final answer is
\[\huge 6.045\times 10^{40}\]

Answer 21

hay! that wasn't so hard! You're awesome! thanks so much :)

Answer 22

no it is not so hard when you know what to do
your are welcome

Answer 23

i have one last problem

Answer 24

Find the value of the following expression:

(28 ⋅ 3−5 ⋅ 60)−2 ⋅ 3 to the power of negative 2 over 2 to the power of 3, whole to the power of 4 ⋅ 228

Answer 25

@misty1212

Answer 26

can you post a screen shot or something?

Answer 27

ok

Answer 28

lol

Answer 29

Write your answer in simplified form. Show all of your steps

Answer 30

@misty1212

Answer 31

\[\huge \left(\frac{3^{-2}}{2^3}\right)^4\]

Answer 32

yes and the rest is (28 ⋅ 3−5 ⋅ 60)−2 ⋅ ⋅ 228

Answer 33

i can't read that, but for the one above if you multiply the exponents you get
\[\frac{3^{-8}}{2^{12}}\]