Start with any two-digit number. Multiply each digit by itself then add these answers. Do the same thing to this new number and so on until something happens. For example 32 becomes 9+4 which is 13, 13 becomes 1+9 which is 10, 10 becomes 1+0 =1. This one ends at 1. What else happens when you start with different numbers?
Decimal numbers such as 3.762 are used in situations which call for more precision than whole numbers provide. As with whole numbers, a digit in a decimal number has a value which depends on the place of the digit. The places to the left of the decimal point are ones, tens, hundreds, and so on, just as with whole numbers.
The "number" is correct for your solution to part one of the first problem, but I don't like what you have written.
The resultant vector is
(120 + 200COS52, 200SIN52)= (243.132, 157.602)
The magnitude of this vector is
Sqrt(243.1322 +157.6022) = 289.744
The angle measurement of BAC is 52 degrees and the vector AD is the resultant vactor. The angle you want is BAD and you know the lengths of the sides of the triangle BAD so you can find the angle you need using the Law of Coaines.
Basically I turned 18 last week, have been drinking with a few late nights especially last night so I'm pretty sleep deprived and have developed a bit of a cold. But I also have a white substance on most of and 2 lumps on the back of my tongue, which are not painful, I can feel them. Also my gums seem a wee bit more inflamed than usual, although my oral health isn't always impeccable.