Solution :
The significant figure of a number are defined as the positional notation of that number which are most reliable and are absolutely necessary to represent the quantity of something.
In the context, we have to express the given numbers into three significant figures in the form of scientific notation or in the exponential form :
(i). 5590 ----- 
(ii). 0.000498 ----- 
(iii) 135000 ----- 
(iv) 0.000438 ----- 
Answer:
The metric system is a system of measurement that uses the meter, liter, and gram as base units of length (distance), capacity (volume), and weight (mass)
Step-by-step explanation:
The metric system uses units such as meter, liter, and gram to measure length, liquid volume, and mass, just as the U.S. customary system uses feet, quarts, and ounces to measure these.
In addition to the difference in the basic units, the metric system is based on 10s, and different measures for length include kilometer, meter, decimeter, centimeter, and millimeter. Notice that the word “meter” is part of all of these units.
Answer:
x = 
Step-by-step explanation:
distribute parenthesis on both sides of the equation
6x - 9 = 4x + 4 ( subtract 4x from both sides )
2x - 9 = 4 ( add 9 to both sides )
2x = 13 ( divide both sides by 2 )
x = 
Answer:
185
Step-by-step explanation:
All you have to do is multiply 200 by 92.5/100 (because it is 92.5%). This gives you 185.
Hope this helps!
T=d/r
plug in your numbers and divide then you have your answer.