There are three answers and they are: choice 2, choice 3, choice 5
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Further Explanation:
Choice 1 is false because the intersection of the altitudes of a triangle leads to the orthocenter.
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Choice 2 is true because the three medians of any triangle always intersect at the centroid. A median is a line that goes from one vertex to the midpoint of the opposite side. In this case, we go from point E to the midpoint of side CD. The midpoint of CD is found by bisecting segment CD (see choice 5)
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Choice 3 is true. This is effectively the same as choice 5 below. The "perpendicular" aspect does not matter.
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Choice 4 is false. Following the steps mentioned here will create an altitude line (see choice 1)
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Choice 5 is true. To bisect something is to cut it in half. Let's say that point F is the midpoint of line segment CD. This means that line segment EF is one of the three medians of triangle CDE.
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edit update: I changed choice 3 from false to true
Solution is (2.667,0) but x=2.667
Answer:
lol how much??????.......
The first five terms of the sequence are 1, 4, 7, 10, 13.
Solution:
Given data:


General term of the arithmetic sequence.
, where d is the common difference.
d = 3

Put n = 2 in
, we get



Put n = 3 in
, we get



Put n = 4 in
, we get



Put n = 5 in
, we get



The first five terms of the sequence are 1, 4, 7, 10, 13.
Answer:
392
Step-by-step explanation:
3 rectangular faces
7 x 16 = 112
7 x 16 = 112
7 x 16 = 112
2 triangular faces
1/2 x 7 x 8 = 28
1/2 x 7 x 8 = 28
Total surface area:
112 + 112 + 112 + 28 + 28 = 392