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Mathematics 20 Online
OpenStudy (anonymous):

MEDALS!!! ANYONE 18. The equation (x + 5) + (y + 3) = 169 models the position and range of the source of a radio signal. Describe the position of the source and the range of the signals.

OpenStudy (anonymous):

do u know what to do first @myronnapora

OpenStudy (millsemily):

Is this what you meant to type? If the equation (x+5)2 +(y+3)2=169 is so... the position and range of the source of a radio signal the position of the source is (-5, -3) and the range of the signals is 13 units.

OpenStudy (anonymous):

mill its x+5^2 and so is the other one

OpenStudy (millsemily):

Yeah so I think that is right then :)

OpenStudy (anonymous):

An hourglass, composed of two identical cones, is 12 cm tall. The radius of each cone is 3 cm. If you want to fill the bottom half of the hourglass full of salt, how much salt will you need? Explain the method you would use to find the amount of salt.

OpenStudy (anonymous):

@millsemily

OpenStudy (millsemily):

Well first you need to know hpw to find the area of a cone. That and maybe the perimeter. I think is a lad right? I can't help you really on this. Sorry xD

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