It's due to more pressure as the sound is searched deep into the waters.<span> The adjustments were done to adapt and make clearer sounds.</span><span>
</span><span>Animal researchers use hydrophone arrays to determine the location of the whale calls. </span><span>Another equipment is the Sound Surveillance system, it is used on the sea floor once during the cold war to detect warships and submarines. But now it is used in researchers to understand animals in the ocean. </span>
Answer:
<u>x = 7</u>
Explanation:
Because 25 is a perfect square of 5, we can turn
= 
into
= 
Since the bases are now both equal, we can completely ignore them, as we are only trying to find x. This leaves us with:
3x - 5 = 2x + 2
All we have to do now is solve for x:
x - 5 = 2 <em>Subtract 2x from both sides.</em>
<u>x = 7</u> <em>Add 5 to both sides.</em>
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<em>Hope this helps! :)</em>
There will be less food available for the original species
Answer:
14
Explanation:
For independent variables X and Y;
S.D(X - Y) is expanded as :
S.D(X) + S.D(Y)
If S.D(X) = 6 and S.D(Y) = 8 ; where, X and Y are independent ;
SD(X-Y) = SD(X) + SD(Y)
SD(X - Y) = 6 + 8
SD(X - Y) = 14
