Centre of mass
The vertices of triangle ABC are from the line p distances 3 cm, 4 cm and 8 cm. Calculate distance from the center of gravity of the triangle to line p.
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 verbal math problem are needed these knowledge from mathematics:
Next similar examples:
Calculate the coordinates of the center of gravity T [x, y] of triangle ABC; A[11,4] B[13,-7] C[-17,-18].
- 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?
- Elimination method
Solve system of linear equations by elimination method: 5/2x + 3/5y= 4/15 1/2x + 2/5y= 2/15
- Harmonic and arithmetic means
The local Utah Department of Child Service office wants to project staffing needs based on current social worker assignments. They have the number of cases per social worker for the following staff: Mary: 25 John: 35 Ted: 15 Lisa: 45 Anna: 20 Calculat
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) ?
- Sequence 2
Write the first 5 members of an arithmetic sequence a11=-14, d=-1
- AP - simple
Determine the first nine elements of sequence if a10 = -1 and d = 4
Write the first 6 members of these sequence: a1 = 5 a2 = 7 an+2 = an+1 +2 an
Write the first 7 members of an arithmetic sequence: a1=-3, d=6.
How many ways can divide 16 players into two teams of 8 member?
- Reference angle
Find the reference angle of each angle:
The class is 21 students. How many ways can choose two to examination?
The village markets have 5 kinds of sweets, one weighs 31 grams. How many different ways a customer can buy 1.519 kg sweets.
- 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?
There are 9 interactive basic building blocks of an organization. How many two-blocks combinations are there?
- 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?