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victus00 [196]
3 years ago
9

If a regular polygon has an exterior angles that measure 60 degrees each, how many sides does a polygon have

Mathematics
1 answer:
lutik1710 [3]3 years ago
3 0
360/60=6

hope it helps
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Jaden says that two triangles are congruent if their interior angles are congruent. Is Jaden correct, and why?
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Answer:

No

Step-by-step explanation:

No. Congruent triangles should also have corresponding congruent side lengths.

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2 years ago
Which of the following is NOT equivalent to the nxn matrix A being invertible? A. The homogeneous system associated to A has a u
storchak [24]

Answer:

Option C

Step-by-step explanation:

  • For the matrix A of order n\times n to be invertible, its determinant must not be equal to zero, |A| \neq0, A^{- 1}  exists if- AC = CA = I, where I is identity matrix.
  1. The homogeneous equation with coefficient matrix A has a unique solution:

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      Thus, B = (0, 0, 0......., 0) is a unique solution

     2. The non - homogeneous equation system with coefficient matrix A has  a unique solution:

For an equation- AY = D

Y = A^{- 1}.D is a unique solution

     3. Every non homogeneous equation with coefficient matrix A is not consistent as:

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      4. Rank of matrix A = n, Thus the column space of A is R^{n}

      5. Since, column space of A = R^{n}, thus x→xA is one-to-one

       

5 0
3 years ago
Which is the image of (-2, -5) reflected across X=2? <br> (-6, 5) <br> (-2,9) <br> (6,-5) <br> (2,9)
Sedbober [7]

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Step-by-step explanation:

As the point is 4 units to the left of X=2, the reflection must be 4 units to the right of X=2

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PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ
vaieri [72.5K]
4 1/2x7=31.5
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40 miles in two weeks
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stealth61 [152]
( 1, 2 ###############
6 0
2 years ago
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