The centroid is where the medians, or lines from one angle to the midpoint of the opposite side, meet. This point is the center of mass and balance (D) of a triangle.
Answer:
Step-by-step explanation:
First we need to find the common denominator of 8 and 12, which is 24.
Next we rewrite our fractions:
This cannot be reduced.
The person is half of the trees length so the answer would be
1.75* 2= 3.5
The tree is 3.5m
Answer:
Step-by-step explanation:
The right triangles are all similar, so corresponding sides are in proportion.
short side / hypotenuse = 5/x = x/17
x^2 = 85
x = √85 ≈ 9.2
__
short side / long side = 5/y = y/12
y^2 = 60
y = √60 ≈ 7.7
3 + 6 + 9 + 12 + ... + 999
<span>= 3(1 + 2 + 3 + 4 + ... + 333) </span>
<span>= 3(Summation of r from 1 to 333) </span>
<span>= 3((1 + 333)(333/2)) </span>
<span>= 3(334)(333/2) </span>
<span>= 3(167)(333) </span>
<span>= 166833 </span>
<span>Edit: Opps, I forgot that you ask about an equation. </span>
<span>The sum of 1 + 2 + 3 + 4 + ... + n, where n is some integer, is: </span>
<span>(First term + Last term) multiplied by (Total number of terms / 2) </span>
<span>= (1 + n)(n / 2)</span>