Find the reference angle of each angle:
Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):
Showing 0 comments:
Be the first to comment!
To solve this example are needed these knowledge from mathematics:
Next similar examples:
- Three workshops
There are 2743 people working in three workshops. In the second workshop works 140 people more than in the first and in third works 4.2 times more than the second one. How many people work in each workshop?
How many ways can divide 16 players into two teams of 8 member?
It is true that the lines that do not intersect are parallel?
Write the first 7 members of an arithmetic sequence: a1=-3, d=6.
- PIN - codes
How many five-digit PIN - code can we create using the even numbers?
How many 4-tones chords (chord = at the same time sounding different tones) is possible to play within 7 tones?
Cancer has 5 pairs of legs. The insect has 6 legs. 60 animals have a total of 500 legs. How much more are cancers than insects?
The class is 21 students. How many ways can choose two to examination?
- Sequence 2
Write the first 5 members of an arithmetic sequence a11=-14, d=-1
There are 9 interactive basic building blocks of an organization. How many two-blocks combinations are there?
Write the first 6 members of these sequence: a1 = 5 a2 = 7 an+2 = an+1 +2 an
The village markets have 5 kinds of sweets, one weighs 31 grams. How many different ways a customer can buy 1.519 kg sweets.
If the average(arithmetic mean) of three numbers x,y,z is 50. What is the average of there numbers (3x +10), (3y +10), (3z+10) ?
- Elimination method
Solve system of linear equations by elimination method: 5/2x + 3/5y= 4/15 1/2x + 2/5y= 2/15
Is true equality? ?
- Three unknowns
Solve the system of linear equations with three unknowns: A + B + C = 14 B - A - C = 4 2A - B + C = 0
- Theorem prove
We want to prove the sentense: If the natural number n is divisible by six, then n is divisible by three. From what assumption we started?