The radius of earth' s moon is about 173,700,000 cm. write this number in scientific notation.

1.73*10^8

A number scientific notation has to be between 1-10 and 1.73 is. Start at the end of the number and move back until you get to 1.73. Moving left/backwards gives you an positive exponent and moving right/frontwards gives you an negative exponent. Since you moved back 8 spaces you have 1.73 * 10^8

2/3

step-by-step explanation:

yes

step-by-step explanation:

so of course you want to start by plugging the 5 in which goes to 7(5)+3(5)=50 because 7*5=35 and 3*5=15 and then add them together, then plug in the 5 to the other equation as well 9(5)+5=50 because 9*5= 45 and then add 5 and so yes they are equivalent.