I, We can estimate the number of hours in a year comparing the orders of magnitude of both (in seconds).
An hour has 3.6 * 10^3 seconds, and a year has approximately 3.2 * 10^7, so we can approximate the number of hours in a year as:
II. We can calculate the exact value using all the numbers and calculating:
III. In the first part we can approximate the value doing a manual or mental calculation with the digits (3.2/3.6) and substracting the exponents of the power of 10.
In the second case, we calculate the quotient with all the information and then transform the result into scientific notation.
The difference is in the precision of the digits when we do a mental estimation versus a complete calculation. But, we can be in the order of magnitude with not so much error because the most significant part is in the power of 10 and it is easier to calculate even manually.
Answer:
15th term = 29x-63
Step-by-step explanation:
Answer:
5,720,000 Sq Feet.
Step-by-step explanation:
They are asking the Area of a Trapezoid
Equation =( base + base / 2) x height
Lets first set it up. We know that A-B is 200 feet. & D-C is 260. They are both the bases.
So if you multiply them (200 x 260) You will get 52000.
Now we divide that by 2. (52000 / 2 = 26000)
Now it says the straight line is 220. I think this refers to the height.
Now we multiply 26000 x 220. Which is 5720000.
Its a pretty big number, but that is the answer! :)
Hope this helps!
Answer: x^6 or x to the power of 6
Step-by-step explanation:
Not really sure what the expressions are but I just simplified the expression.
There are 180 degrees in total inside a triangle.
If something is equilateral that means that all the angles are equal.
180/3 equals 60 degrees.
That means that all angles of an equilateral triangle are always equal to each other and if you must know, are 60 degrees
