3 years ago

Please help- (fill in the blank!)

Mathematics

1 answer:

iogann1982 [59]3 years ago

4 0

Answer:

the integer that represents ground level is 0

Step-by-step explanation:

integers are all whole numbers so if those are negative in the ground 0 would be ground level

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Answer:

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Step-by-step explanation:

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3 years ago

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Suppose that A is nonsingular. Prove that its inverse A-1 is unique. [Hint: Show that if there exists two matrices, B and C, suc

Bogdan [553]

Answer with Step-by-step explanation:

Let A is non-singular

$\mid A\mid\neq 0$

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Suppose B and C are inverse of A such that

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By using property $AA^{-1}=A^{-1}A=I$

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3 years ago

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Answer:

x = 8

Step-by-step explanation:

See the attached figure.

As shown:

ABCD is a kite,

BC = 2x - 5

DC = x + 3

one of the properties of the kite is BC = DC

So, 2x - 5 = x + 3

Solve for x, Combine like terms

∴ 2x - x = 3 + 5

∴ x = 8

So, the value of x is 8.

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