50 points! will award brainliest! i have the scientific notations of 5.8x10^7km and 2.5x10^-3cm and i need them both to be in km. i need a detailed description on how to do that. you must explain in great detail or i will not give brainliest!

converting a number to scientific notation  

in S.N., the decimal point is immediately to the right of the leftmost significant digit  

the number of places that the decimal point must be moved is the size of the exponent of ten  

the direction that the decimal point is moved determines the sign of the exponent  

moving to the left means a positive exponent; to the right means a negative exponent  

58,000,000 becomes 5.8x10^?  

the decimal point moved 9 places to the left. 5.8x10^9  

0.0025 becomes 2.5x10^?  

the decimal point moved 3 places to the right.  2.5x10^-3

she played for 18.75 hours.

step-by-step explanation:

if she played 2/4 of a hour on tuesday. and there is 60 minutes in an hour and 60 divided by 4 is 7.5. and she played 2/4 of an hour on thursday then again 60 divided by 4 is 7.5, you add 7.5+7.5=56.25. now you have to do 1/4 of an hour, it equals 3.75. now you have to add them all up. 3.75+7.5+7.5=18.75

i hope this and i hope you get it right. it took me a while to get this done for you. : )

answer

the correct answer is

explanation

the given function is

the excluded values are obtained by solving:

we factor to obtain:

the excluded values are