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kkurt [141]
3 years ago
11

Examples of singular and non-singular matrix.​

Mathematics
1 answer:
finlep [7]3 years ago
3 0

Answer:

Step-by-step explanation: For example, if we have matrix A whose all elements in the first column are zero. Then, by one of the property of determinants, we can say that its determinant is equal to zero. Hence, A would be called as singular matrix. Note that singular matrices are non-invertible (their inverse does not exist).

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siniylev [52]

Answer:

2.56 repeating

Step-by-step explanation:

8 0
3 years ago
Can someone please help me with 44. And 45?
Angelina_Jolie [31]

Problem 44

The term "bisect" means "cut in half".

Since BD bisects angle ABC, this means the smaller angles ABD and DBC are congruent.

angle ABD = angle DBC

x+15 = 4x-45

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60 = 3x

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x = 20

<h3>Answer:  x = 20</h3>

========================================================

Problem 45

We use the same idea as the previous problem

angle ABD = angle DBC

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6 0
2 years ago
Read 2 more answers
PLZ HELP! A train averages a speed of 90 miles per hour across the plains and 37.5 miles per hour through the mountains. If a tr
Kruka [31]

Answer:

3.8

Step-by-step explanation:

A train averages a speed of 90 miles per hour across the plains and 37.5 miles per hour through the mountains.

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Let d = distance traveled at 37.5 (thru the mountains)

then

(300-d) = distance traveled at 90 mph

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%28300-d%29%2F90 + d%2F37.5 = 3.8

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cancel the denominator

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-----------------

total time: 3.8 hrs

7 0
3 years ago
What are two ways to get from 5 to 10 ?
Aleksandr [31]
Add 5 to 5, or multiple 5 by 2.
5 0
3 years ago
Read 2 more answers
Plz help will mark brainliest
Kryger [21]

∆ABC=∆DEF

AB=DE –>String

BC=EF–> Rib

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AC=DF

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8 0
2 years ago
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