2 years ago

Solve the system of equations. 2x y = 7 5x y = 9

Mathematics

1 answer:

lana [24]2 years ago

7 0

Are you missing something?
2xy=7
5xy=9
does not have a solution.
If you mean
2x+y=7
5x+y=9
please say so.

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-2 1/3 - (-5) = ? can someone please help me ty!

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Step-by-step explanation:

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2 years ago

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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

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3 years ago

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Step-by-step explanation:

$\bf \huge \red{Answer:-}$

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2 years ago

1320/5280 in simplest form?

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1320/5280 in the simplest form is 1/4

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The temple at the top of pyramid is approximately 24 meters above the ground, and there are 91 steps leading up the temple. How

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Answer:

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Basically, there are 24 meters for every 91 steps: $\frac{24}{91}$

There are x meters for every 50 steps: $\frac{x}{50}$

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Divide both sides by 91 to isolate the variable, x

91x/91 = 1200/91

x = 13.186813

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