Which elementary row operation will reduce the x–element in row 2 to 0 in this matrix? [1 1 1 | 12
2 1 0 | 14
2 0 3 | 19]
A. 2R1 + R2 B. 2R3 – R2 C. -2R1 + R2 D. R1 + R2

the diver is 33 feet below the surface.

step-by-step explanation:

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1. 16.64

a^2+b^2=c^2

pr^2=pq^2+qr^2

pr^2=14^2+ 9^2

pr^2=196+81

pr= sqr root of 277

16.64

2. 11.31

c^2-a^2=b^2

18^2- 14^2=b^2

b^2=324-196

b=sqr root of 126

b=11.31

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answer: i ! the answer is   9000 seconds, also d

hope i

-lavira : )

the answer will be -6x^2 +46

step-by-step explanation: