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ss7ja [257]
3 years ago
11

Hii I need help and if someone doesn’t mind to explain why too

Mathematics
1 answer:
alexira [117]3 years ago
5 0
All I can tell you is that there is no outlier. Consider an outlier as a number that is far out, or odd in a series of numbers as such. For example, if you had {1,2,3,4,40}, 40 would be the outlier.
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A square matrix A is said to be idempotent iff A2 = A. (i) Show that if A is idempotent, then so is I − A. (ii) Show that if A i
muminat

Answer:

Step-by-step explanation:

Given that A is a square matrix and A is idempotent

A^2 = A

Consider I-A

i) (I-A)^2 = (I-A).(I-A)\\= I^2 -2A.I+A^2\\= I-2A+A\\=I-A

It follows that I-A is also idempotent

ii) Consider the matrix 2A-I

(2A-I).(2A-I)=\\4A^2-4AI+I^2\\= 4A-4A+I\\=I

So it follows that 2A-I matrix is its own inverse.

7 0
3 years ago
Identify tan P as a fraction and as a decimal rounded to the nearest hundredth. HELP PLEASE!!
KonstantinChe [14]
<h3>Answer: Choice C</h3>

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

Work Shown:

Reference angle = P

Opposite side = QR = 8.5

Adjacent side = QP = 16

tan(angle) = opposite/adjacent

tan(P) = QR/QP

tan(P) = 8.5/16

tan(P) = 0.53125

tan(P) = 0.53

6 0
3 years ago
I need help fast. 8th grade multiple question. (I added photos)
n200080 [17]

Answer:

C is the answer

Step-by-step explanation:

5 0
3 years ago
15. Hatice Hanım, 3 çocuğuna birer
elena-14-01-66 [18.8K]

Answer:

D

Step-by-step explanation:

Merhaba!

500-5=495

bir ayakkabı=495/3=165

Good work ;)

6 0
2 years ago
Which defines a circle geometry
kumpel [21]

Answer:

a circle is the locus of all points equidistant from a central point

7 0
3 years ago
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