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2 years ago

How many outfits could you make if you had 6 pants,7 shirts,and 4 pairs of shoes to choose from?

Mathematics

1 answer:

hammer [34]2 years ago

6 0

Answer:

Step-by-step explanation:

6x7x4= 168

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

7 0

2 years ago

Find the equation of the line passing<br> through the points (2, 1) and (5, 10).<br> y = [? ]x + [ ]

sladkih [1.3K]

Answer:

$y=3x-5$

Step-by-step explanation:

$m=10-1/5-2$

$m=9/3$

$m=3$

$y=3x+b$

$x=2, y=1$

$1=3(2)+b$

$1=6+b$

$-5=b$

$y=3x-5$

8 0

2 years ago

Put the steps in correct order for the equation Solve 3(2x−7)+5=−19

Anna11 [10]

Answer:

6x-21+5 = -19 Distribute

6x-16 = -19 Combine like terms

6x = -3 Add

x = -1/2 Division

4 0

2 years ago

Read 2 more answers

9 squared ? 11 ? 8 ? 4 ? 1 = 60 The ? Can be +,-,x or d division

dexar [7]

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5 0

2 years ago

sandy had 3.8 points in the quiz game. she missed 5 questions losing 1 point each time how many points did she have at the end

telo118 [61]

Answer:

-1.2

Step-by-step explanation:

3.8-5=-1.2

lmk if this is right

hope it helped

8 0

2 years ago