Perform the row operation: Perform the row operation:

2 −1 −4 7
0 −30 20 −50
0 30 24 6

2 −1 −4 7
0 −30 20 −50
0
what is this

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step-by-step explanation:

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step-by-step explanation:

just for that im not answering

to find the total number of combinations, multiply the quantity of each item by each other:

2 pairs of shoes x 3 pairs of shorts = 6 different combinations.

34.5 cm

step-by-step explanation:

generally for a circular segment of angle, θ° and radius r

arc length

= (θ/360) x circumference

= (θ/360) x 2πr

in our case, θ = 60°, π=3.142 and r = 33 cm

substitute into above formula

arc length

= (60/360) x 2(3.142)( 33) = 34.5 cm