Result

Solution: Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...): Be the first to comment! Next similar examples:

1. Theorem prove We want to prove the sentence: If the natural number n is divisible by six, then n is divisible by three. From what assumption we started?
2. First man What is the likelihood of a random event where are five men and seven women first will leave the man?
3. Reference angle Find the reference angle of each angle:
4. Slope Find the slope of the line: x=t and y=1+t.
5. Cosine The point (8, 6) is on the terminal side of angle θ. cos θ = ?
6. One half One half of ? is: ?
7. Trees A certain species of tree grows an average of 0.5 cm per week. Write an equation for the sequence that represents the weekly height of this tree in centimeters if the measurements begin when the tree is 200 centimeters tall.
8. 6 terms Find the first six terms of the sequence. a1 = 7, an = an-1 + 6
9. Powers Express the expression ? as the n-th power of the base 10.
10. Nineteenth member Find the nineteenth member of the arithmetic sequence: a1=33 d=5 find a19
11. Two equations Solve equations (use adding and subtracting of linear equations): -4x+11y=5 6x-11y=-5
12. Volleyball 8 girls wants to play volleyball against boys. On the field at one time can be six players per team. How many initial teams of this girls may trainer to choose?
13. Functions f,g Find g(1) if g(x) = 3x - x2 Find f(5) if f(x) = x + 1/2
14. Linear system Solve a set of two equations of two unknowns: 1.5x+1.2y=0.6 0.8x-0.2y=2
15. Factory and divisions The factory consists of three auxiliary divisions total 2,406 employees. The second division has 76 employees less than 1st division and 3rd division has 212 employees more than the 2nd. How many employees has each division?
16. The ball The ball was discounted by 10 percent and then again by 30 percent. How many percent of the original price is now?
17. Blocks There are 9 interactive basic building blocks of an organization. How many two-blocks combinations are there?