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I am Lyosha [343]
2 years ago
15

WILL GIVE BRAINLIEST FOR CORRECT ANSWER

Mathematics
2 answers:
Nadusha1986 [10]2 years ago
7 0

Answer: Hi the answer is A. The number of observations is 10

Step-by-step explanation:hope this helped

tester [92]2 years ago
6 0

Answer:

I think it A

Step-by-step explanation:

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Find cos x if sin x =0.82.
True [87]

Answer:

cosx= 35. Use Trignometrical identity cosx = √1−sin2x . cos x = √1−1625 = √925 = 35 to be the ...

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Step-by-step explanation:

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3 years ago
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Scilla [17]

Answer:

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Step by Step Explanation:

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2 years ago
Suppose A is n x n matrix and the equation Ax = 0 has only the trivial solution. Explain why A has n pivot columns and A is row
vovangra [49]

Answer:

Remember, a homogeneous system always is consistent. Then we can reason with the rank of the matrix.

If the system Ax=0 has only the trivial solution that's mean that the echelon form of A hasn't free variables, therefore each column of the matrix has a pivot.

Since each column has a pivot then we can form the reduced echelon form of the A, and leave each pivot as 1 and the others components of the column will be zero. This means that the reduced echelon form of A is the identity matrix and so on A is row equivalent to identity matrix.

4 0
3 years ago
I need help with 15/20
Mrac [35]
.75 is the answer because it looks like division
8 0
3 years ago
Read 2 more answers
Write as a numerical expression: “ Six less than twice a number is four “
VladimirAG [237]

Answer:

2x - 6 = 4

Step-by-step explanation:

Firstly, let's assume the number is x

Then, twice the number is 2 times x = 2x

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2x - 6 = 4

2x - 6 + 6 = 4 + 6

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2x/2 = 10/2

x = 5

6 0
3 years ago
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