3 years ago

You all okay out there? - [Just a check]

Mathematics

2 answers:

Sphinxa [80]3 years ago

7 0

Yeah how about u tho ?

marysya [2.9K]3 years ago

6 0

Answer:

Today has been much better than normal, so I'm doing good :)

Step-by-step explanation:

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Joanna has a board that is 6 feet long. She cuts it in to pieces that are each 1/4 foot long. Which equation represents the numb

weeeeeb [17]

6/(1/4) = 24, 1/4 ft long pieces

3 0

4 years ago

Show that if A is invertible, then det Upper A Superscript negative 1det A−1equals=StartFraction 1 Over det Upper A EndFraction

netineya [11]

Answer:

Therefore

$det(A)*det(A^{-1}) = 1$ and $det(A^{-1}) = 1/det(A)$

Step-by-step explanation:

Remember that if

$I$ = Identity Matrix

then $det(I)=1$ .

Also remember that for any invertible matrix

$A*A^{-1} = I =$ Identity Matrix.

Therefore

$det(A*A^{-1}) = det(A)*det(A^{-1}) = det(I) = 1$

Therefore

$det(A)*det(A^{-1}) = 1$ and $det(A^{-1}) = 1/det(A)$

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3 years ago

What are the factors of the equation x 2 - 5x + 6?

xxTIMURxx [149]

Answer:

(x-3)(x-2)

Step-by-step explanation:

x^2 -5x+6

What two numbers multiply to 6 and add to -5

-3 * -2 = 6

-3 -2 = -5

(x-3)(x-2)

7 0

3 years ago

Add 2.5 to the product of 4.2 and 0.2

Fudgin [204]

Answer:

3.34.

Step-by-step explanation:

4.2 * 0.2 + 2.5

= 0.84 + 2.5

= 3.34.

4 0

2 years ago

Read 2 more answers

Help me please !!!!!!!

OLEGan [10]

Answer:

Step-by-step explanation:

because yeah

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3 years ago