A unit radian is approximately equal to

57^{\circ} 17^{'} 43 "

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57^{\circ} 17^{'} 45 "

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57^{\circ} 17^{'} 47 "

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57^{\circ} 17^{'} 49 "

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Solution

The correct option is B $57^{\circ} 17^{'} 45 "$
1 radian x 180 degrees per pi radians = 57.295779513082 degrees.

0.295779513082 degrees x 60 minutes per 1 degree = 17.74677078492 minutes.
0.74677078492 minutes x 60 seconds per 1 minute = 44.8062470952 seconds.

Answer : 57 degrees, 17.75 minutes or

57 degrees, 17 minutes, 45 seconds

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{(\frac{2}{3})}^{- 5} \times {(\frac{5}{7})}^{- 5}

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{(\frac{2}{3} \times \frac{5}{7})}^{- 5}

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(-57)×(-19)+57

Why is 1 coming like(57)×(19)+57×1

Question 13

$(- 10) \times (- 5) + (- 7)$ is equal to

(a) -57
(b) 57
(c) -43
(d) 43

\frac{2}{3} \times (\frac{5}{7} \times \frac{3}{4}) :

\frac{2}{3} \times (\frac{5}{7} \times \frac{3}{4}) = \frac{2}{3} \times (\frac{3}{4} \times \frac{5}{7})

\frac{2}{3} \times (\frac{3}{4} \times \frac{5}{7}) = (\frac{2}{3} \times \frac{3}{4}) \times \frac{5}{7}

\frac{1}{2} \times \frac{5}{7} = \frac{5}{14}

How to solve -57*-19+57 in distributive property

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