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3 years ago

Again. Did I solve the Matrices correctly. By the way it's multiplying matrices.

Mathematics

2 answers:

pychu [463]3 years ago

5 0

Yup, it looks good to me.

liberstina [14]3 years ago

3 0

I just used my Ti 84

it is correct except for 3rd number

should be
-3
-6
-16
8

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ABC is an equilateral triangle .Three distinct points are marked on each sides of the triangle. (not on the vertices). (i) How m

iVinArrow [24]

The number of lines and triangles illustrates combination

36 lines can be drawn to join the nine points
84 triangles can be drawn using the nine points

<h3>The number of lines that can be drawn</h3>

The given parameters are:

Total points, n = 9

Total points on each line, r = 2

The number of lines that can be drawn is then calculated using the following combination formula

Lines = nCr

This gives

Lines = 9C2

Evaluate the combination expression

Lines = 36

Hence, 36 lines can be drawn to join the nine points

<h3>The number of triangles that can be drawn</h3>

The given parameters are:

Total points, n = 9

Total points on each triangle, r = 3

The number of triangles that can be drawn is then calculated using the following combination formula

Triangles = nCr

This gives

Triangles = 9C3

Evaluate the combination expression

Triangles = 84

Hence, 84 triangles can be drawn using the nine points

Read more about combination at:

brainly.com/question/11732255

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ki77a [65]

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Alona [7]

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Four more than half of the students in Bryan’s homeroom have tickets to attend the school’s musical. 20 students have tickets. S

vlabodo [156]

Answer:

<h2>The option B and D are the equations.</h2>

Step-by-step explanation:

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Option D is also the same.

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3 years ago