Find the inverse of the matrix.



A.
B.
C.
D.
E.


Answer: E

Mathematics

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Solve.Use the formula D = 10.0 log (S/S0), where the loudness of a sound in decibels is determined by S, the number of watt/m2 produced by the sound wave, and S0 = 1.00 × 10-12 watt/m2. What is the intensity in watt/m2 of a noise measured at 64 decibels? (Round to an appropriate number of significant digits.)

A. 2.5 × 10-6 watt/m2 B. 6.4 × 10-10 watt/m2 C. 6.0 × 1014 watt/m2 D. 2.5 × 10-5 watt/m2

Mathematics

Determine the value of cell E1 if it contains the formula ? +A1 + . . . + D1 or @sum(A1 . . . D1) ?  1 ABCDE6-4 2 3 2     3     4     5     ? ? ?

A. 9 B. 7 C. 6 D. 8 E. 5

Mathematics

Find sin ? and tan ? if the terminal side of ? lies along the line  in quadrant I. ? 

A.
B.
C.
D.
E.

Mathematics

Convert the units using unit fractions.24 oz =  lb

A. 240
B. 2
C. 384
D. 1

Mathematics