I don't know what level of math you are studying at in grade 8 in your region, but you have to know several facts of geometry
1. the Pythagorean Theorem
2. In a right-angled triangle, if a median is drawn from the right angle to the hypotenuse, the length of that median is half the hypotenuse, thus you have three equal lengths
3. The medians of any triangle meet at a point called the centroid. The centroid divides any median in the ratio of 2 : 1, with the longer part towards the angle, or, that longer part is 2/3 of the length of the median.
Make a sketch of a right-angled triangle, draw the medians and consider the length of those longer parts of each of the 3 medians
You want to square the numerical value of their lengths and then add them up.
If I recall this problem, the sum of those squares is equal to (3/2)(hypotenuse)^2
Does this make any sense ?
Test it with the right-angled triangle, 6,8, 10
the hypotenuse of a right triangle is d. Find the sums of squares of the distances from the point of intersections of medians to the three vertices of the triangle.
What? What does even mean? Why are they talking abou finding sums of squares if it's a triangle? I don't get it... can someone please explain how I to get be this?
2 answers
What is the probability of selecting a purple marble and then a white marble?
What is the probability of selecting two white marbles?
Is there a greater chance of selecting two white marbles in a row or two purple marbles in a row? Show your work.
What is the probability of selecting a purple marble and then a white marble?
What is the probability of selecting two white marbles?
Is there a greater chance of selecting two white marbles in a row or two purple marbles in a row? Show your work.
What is the probability of selecting a purple marble and then a white marble?
What is the probability of selecting two white marbles?
Is there a greater chance of selecting two white marbles in a row or two purple marbles in a row? Show your work.
What is the probability of selecting two white marbles?
Is there a greater chance of selecting two white marbles in a row or two purple marbles in a row? Show your work.
What is the probability of selecting a purple marble and then a white marble?
What is the probability of selecting two white marbles?
Is there a greater chance of selecting two white marbles in a row or two purple marbles in a row? Show your work.
What is the probability of selecting a purple marble and then a white marble?
What is the probability of selecting two white marbles?
Is there a greater chance of selecting two white marbles in a row or two purple marbles in a row? Show your work.