Alberta Free Tutoring And Homework Help For Math 20-1

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The speed of a tidal wave produced by a tsunami is determined by the formula  s= 356 $\sqrt{d}$d  , where S is the speed of the wave in km/h, and d is the depth of the ocean in km.  If the speed of a wave is determined to be 150 km/h, what is the depth of the ocean at that point?  Show all work, and round to the nearest hundredth of a kilometre

6 years ago

Answered By Sina E

S=356* $\sqrt{d}$d ==>The speed of the wave is equal to s=150 km/hr, 150=356* $\sqrt{d}$d ==>  $\sqrt{d}=\frac{150}{356}=0.4123$d=150356 =0.4123 ==> since this is an equality we can take both sides to a power of 2 in order to get rid of the square root ==> $\left(\sqrt{d}\right)^2=\left(0.4213\right)^2=0.1775km$(d)2=(0.4213)2=0.1775km ==> d=0.18 km 


6 years ago

Answered By Sujalakshmy V

S=356 $\sqrt{d}$d 

 S is given as 150 Km/hr

150 = 356   $\sqrt{d}$d  

 $\sqrt{d}$d =150/356 =0.4213 

d= (0.4213)2 = 0.1775 Km  

Rounding to nearest hundredth of a km,d=0.18 Km.

The depth of the ocean is 0.18 Km