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OleMash [197]
3 years ago
5

Help answer this question please

Mathematics
1 answer:
scoray [572]3 years ago
7 0

Answer:

The answer is the first one

Step-by-step explanation:

Correct me if I’m wrong and sorry if you got it wrong

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1 yd = 3 ft
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Seven feet more than the height
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Answer: seven feet more than the height is h+7

Step-by-step explanation:

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Seven feet “MORE than the height” indicates that this is an addition problem. Therefore, seven feet more than the height is h+7.

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4 years ago
Let A and B are n x n matrices from which A is invertible. Suppose AB is singular. What conclusion can be made about the inverti
Montano1993 [528]

Answer: Matrix B is non- invertible.

Step-by-step explanation:

A matrix is said to be be singular is its determinant is zero,

We know that if a matrix is singular then it is not invertible.    (1)

Or if a matrix is invertible then it should be non-singular matrix.      (2)

Given :  A and B are n x n matrices from which A is invertible.

Then A must be non-singular matrix.                            ( from 2 )

If AB is singular.

Then either A is singular or B is singular but A is a non-singular matrix.

Then , matrix B should be a singular matrix.                   ( from 2 )

So Matrix B is non- invertible.                                     ( from 1 )

7 0
3 years ago
10
Makovka662 [10]

Answer:

B. 198

Step-by-step explanation:

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