3 years ago

Which of the following are true about slope? (choose the ones that are true)

Mathematics

1 answer:

Serhud [2]3 years ago

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Answer:

Hello ?????????????? hello !!!!

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A virticaly pole BP stands at one corner of a horizontal rectanglar field as shown if ab

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Answer:

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Step-by-step explanation:

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3 years ago

A square matrix A is said to be idempotent iff A2 = A. (i) Show that if A is idempotent, then so is I − A. (ii) Show that if A i

muminat

Answer:

Step-by-step explanation:

Given that A is a square matrix and A is idempotent

$A^2 = A$

Consider I-A

i) $(I-A)^2 = (I-A).(I-A)\\= I^2 -2A.I+A^2\\= I-2A+A\\=I-A$

It follows that I-A is also idempotent

ii) Consider the matrix 2A-I

$(2A-I).(2A-I)=\\4A^2-4AI+I^2\\= 4A-4A+I\\=I$

So it follows that 2A-I matrix is its own inverse.

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3 years ago

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Step-by-step explanation:

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ANSWER IT PLZ! Evaluate the expression. 3² + 6 × 2² - 4² ÷ 2³ = ?

guapka [62]

Answer:

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Step-by-step explanation:

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3 years ago

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A recipe needs 4/5 cups of butter for every 2 cups of flour. If you plan to use 3 cups of flour, how much butter will you need?

DedPeter [7]

Answer:

1 1/5 cups of butter

Step-by-step explanation:

4/5=2

4/5 x 3=12/5

12/5 / 2

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3 years ago

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