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stepan [7]
3 years ago
5

Use vectors to show that, for any triangle1 in R², the points2 that are 2/3 of the way from a vertex to the midpoint of the oppo

site side are all the same point. This point is called the centroid of the triangle.
True / False.

Mathematics
1 answer:
Anit [1.1K]3 years ago
6 0

Answer:

True

Step-by-step explanation:

the centroid divides each median into segments with a 2:1 ratio(means 2/3)

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if a baseball team has lost 50 matches out of the 120 matches played in total, find out their winning percentage?​
Helga [31]
To find the amount of matches won:

120 – 50 = 70

So the baseball team has won 70 matches.

To convert this to a percentage:

(Matches won / Total matches ) x 100

(70/120) x 100 = 58.3% (rounded to 1 decimal place)
6 0
3 years ago
Determine the slope of the line that passes through each pair of points. <br>A (0,1) ,B (2,7)
valkas [14]
Your answer should be 3

Use this formula to solve slopes:

m = (y2<span> – y</span>1) / (x2<span> – x</span>1<span>) </span>
8 0
3 years ago
Marie and Whitney order eggs for $4.35, pancakes for $3.10, and 2 mugs of cocoa for $1.45 each. The tax is $0.85. How much chang
svetlana [45]

Answer:

$3.80

Step-by-step explanation:

$4.35+$3.10+$1.45+$1.45+$0.85=$11.20

$15.00-$11.20=$3.80

6 0
3 years ago
The Great Pyramid of Giza is an example of a square pyramid and is the last
Verdich [7]

Answer:

The surface area of the pyramid is 466,137 squared cubits

Step-by-step explanation:

This is simply asking us to find the surface area of the square based pyramid with the given dimensions.

The first thing we need to know is the principle for finding the surface area of such pyramidal shapes. To get the surface area of a pyramid, we will have to add the base area to the area of the side faces ( lateral area)

The base area of the square based pyramid, will be the same as the area of a square which is = 453 cubits X 453 cubits =205209 cubits^{2}

The lateral area has already been given to us as 260,928 squared cubits.

The surface area of the pyramid is 260,928 + 205209 = 466137 squared cubits

Hence, the surface area of the pyramid is 466137 squared cubits

5 0
3 years ago
Lightwaves travel from the air into a lens made of glass. Their velocity decreases as they enter the glass. How does this affect
Bingel [31]
Their frequency stays the same and their wavelength decreases
7 0
4 years ago
Read 2 more answers
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