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xz_007 [3.2K]
3 years ago
6

Suppose an n×n matrix A has determinant equal to 1. Which of the following statements is true? Check the correct answer(s) below

. A. The system Ax=b has a unique solution for all b in Rn B. The matrix A is invertible C. The reduced row echelon form of the matrix A is the identity matrix D. The matrix A is singular. E. The homogeneous system Ax=0 has infinitely many solutions F. None of the above
Mathematics
1 answer:
Aloiza [94]3 years ago
5 0

Answer: Identify at least three reasons the Articles of Confederations failed as a governing document. In your opinion, evaluate which defect was most debilitating, using evidence and your knowledge of American government to justify your position.

Step-by-step explanation:

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The interest rate r required to increase your investment p to the amount a in t years is found by . Find the interest rate r for
Dahasolnce [82]

Answer:

The interest rate was of 0.1173 = 11.73%.

Step-by-step explanation:

This is a simple interest problem.

The simple interest formula is given by:

E = P*I*t

In which E is the amount of interest earned, P is the principal(the initial amount of money), I is the interest rate(yearly, as a decimal) and t is the time.

After t years, the total amount of money is:

A = E + P

In this problem, we have that:

A = 10000, P = 8100, t = 2

So

A = E + P

10000 = E + 8100

E = 1900

So

1900 = 8100*I*2

I = \frac{1900}{8100*2}

I = 0.1173

The interest rate was of 0.1173 = 11.73%.

7 0
3 years ago
Please help its for a grade.
Kamila [148]

Answer:

See below

Step-by-step explanation:

<u>Taking the readings from the graph</u>

  • <u>x ....  y</u>
  • 0 .... 2
  • 2 .... 6
  • 4 .... 10
  • 6 .... 14

<u>Rate of change for the given line is:</u>

  • (6 - 2)/2 = 4/2 = 2
  • y- intercept is 2

<u>Equation for the line is:</u>

  • y = 2x + 2

<u>For the point (40, 76) we can verify with the equation:</u>

  • 40*2 + 2 = 82

The point (40, 76) is close the line but the line doesn't pass through it.

6 0
3 years ago
Read 2 more answers
A woman is 70in tall and his shadow is 35in long. A nearby flagpole has a shadow that is 72in long. How tall is the flagpole?
adelina 88 [10]
The flagpole is 144 inches tall. Hope it help!
4 0
4 years ago
Ruth is two times as old as Margie, and Lily is 10 years older than Ruth. If Lily is 60 years old, how old is Margie? (Let m rep
Veronika [31]

Answer:

25 years

Step-by-step explanation:

7 0
3 years ago
What is the distance between points M(2,6) and N(3,1) F√24,G√26, H√50,J√74
topjm [15]

Answer:

Sqrt 26 = 5.1

Step-by-step explanation:

Sqrt [(1-6)^2 + (3-2)^2]

= sqrt (25+1) = sqrt 26 = 5.1

8 0
3 years ago
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