Answer:
16.50
Step-by-step explanation:
well 9 is in the hundreth so you want to round to.50 so 16.50 is the answer
for connexus
Answer:
40
Step-by-step explanation:
The given geometric series is:
.
When n=1, 
, 
When n=2, 
, 
When n=3, 
, 
When n=4, 
, 
The sum of the given series is:
-2+6-18+54=40
Scientific notation means -- one digit before the decimal point, all the others after it; -- count jow many places you have to move the decimal point to make the number look like that; -- left is positive, right is negative; -- after the digits, write " x 10 to the power of" that number from moving the point. / / / / You're starting with 0.006468 . You want it to be 6.468 . You have yo move the decimal point 3 places to the right ... that makes the power -3 . Finally, in scientific notation, it's 6.468 x 10 to the -3 power.
