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Yanka [14]
2 years ago
11

5.

Mathematics
1 answer:
enyata [817]2 years ago
7 0

Answer:

  (E) 90°

Step-by-step explanation:

The diagonals of a parallelogram are equal in length if and only if the parallelogram is a rectangle.

Any angle of a rectangle is 90°.

_____

Adjacent angles of a parallelogram are supplementary. If the diagonals are the same length, the triangles formed by either diagonal are congruent with the triangles formed by the other diagonal. This means adjacent angles are congruent. Congruent supplementary angles are 90°.

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Dima020 [189]

Answer:

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Step-by-step explanation:

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3 years ago
How many zeros does the function f(x) = 3x12 − 17x8 + 11x4 − 6x + 23 have?
dem82 [27]
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Use ^ to denote an exponent.. 

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We know from that fact that the number of zeros (real or complex) in a polynomial is the same as the degree of the polynomial.. 

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3 0
3 years ago
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Answer:

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3 0
2 years ago
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