Answer:
the answer is positive.but just know that this aint a wuestion
Step-by-step explanation:
there are no calculations
Answer:
Step-by-step explanation:
130 decrease
Answer:

Step-by-step explanation:
When multiplying you use the number with least amount of significant figures in it since both 0.00045 and 0.0015 have two significant figures in them our final answer will have two significant figures in it. So the to solve and express in scientific notation we simply multiply:
(0.00045)(500,000)
0.0015 = .3375 but in scientific notation to two significant figures we write:

No it would have to be -50 to be a negative number.