Answer:
If the decimal place has moved to the left then multiply by a positive power of 10; to the right will result in a negative power of 10. Example: To write 3040 in scientific notation we must move the decimal point 3 places to the left, so it becomes 3.04 x 103.
Step-by-step explanation:
Answer:
9 and -9
They would have to look like this: -|9| and -|-9|
Answer:
x=6
Step-by-step explanation:
-2x+15=7
-2x=7-15
-2x=-8
x=-8/-2
x=6
Answer: Last one is right C = 5 / 9 (F-32)
Step-by-step explanation: Solving C from equation F = (9/5)C + 32 :
1. multiply by 5 you get 5F = 9C + 160 and 5(F-32) = 9C
2. divide by 9 you get (5/9) (F-32) = C
