document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1120214>Question 1120214</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Point M is chosen random inside the big circle The radii of the small, middle and big circles are 4 cm, 7 cm, 10 cm respectively. What is the probability that <BR>\n" );
document.write( "a. Point M will be in the part C ?<BR>\n" );
document.write( "b. Point M will be in the part B ?<BR>\n" );
document.write( "c. Point M will be in the part A ?\r<BR>\n" );
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document.write( "image here:<BR>\n" );
document.write( "http://homework.russianschool.com/resource?key=52745jgxxhu6i </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #735886 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52839)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ikleyn><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=ikleyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=735886\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .<BR>\n" );
document.write( "Point M is chosen random inside the big circle The radii of the small, middle and big circles are 4 cm, 7 cm, 10 cm respectively. <BR>\n" );
document.write( "What is the probability that <BR>\n" );
document.write( "a. Point M will be in the part C ?<BR>\n" );
document.write( "b. Point M will be in the part B ?<BR>\n" );
document.write( "c. Point M will be in the part A ?\r<BR>\n" );
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document.write( "image here:<BR>\n" );
document.write( "http://homework.russianschool.com/resource?key=52745jgxxhu6i<BR>\n" );
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document.write( "a. Point M will be in the part C ?     The probability = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=the_area_of_the_circle_C%2Fthe_area_of_the_circle_A ALIGN=MIDDLE  ALT=\"the_area_of_the_circle_C%2Fthe_area_of_the_circle_A\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28pi%2A4%5E2%29%2F%28pi%2A10%5E2%29 ALIGN=MIDDLE  ALT=\"%28pi%2A4%5E2%29%2F%28pi%2A10%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=16%2F100 ALIGN=MIDDLE  ALT=\"16%2F100\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 0.16 = 16%\r\n" );
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document.write( "b. Point M will be in the part B ?     The probability = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=the_area_of_the_circle_B%2Fthe_area_of_the_circle_A ALIGN=MIDDLE  ALT=\"the_area_of_the_circle_B%2Fthe_area_of_the_circle_A\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28pi%2A7%5E2%29%2F%28pi%2A10%5E2%29 ALIGN=MIDDLE  ALT=\"%28pi%2A7%5E2%29%2F%28pi%2A10%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=49%2F100 ALIGN=MIDDLE  ALT=\"49%2F100\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 0.49 = 49%.\r\n" );
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document.write( "c. Point M will be in the part A ?     The probability = 1 = 100%.\r\n" );
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document.write( "<U>Comment from student</U>: &nbsp;thank you for helping with problem a. &nbsp;however, i believe problem b & c are incorrect?<BR>\n" );
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document.write( "<U>My responce</U>:  &nbsp;&nbsp;From my name &nbsp;(referring to me) &nbsp;say to the teachers in your school that they &nbsp;INACCURATELY&nbsp; formulate the problem.\r<BR>\n" );
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document.write( "The accurate formulation must say that  B  is the part of the middle circle which is not in &nbsp;A.  &nbsp;&nbsp;From your post, &nbsp;I read it differently.\r<BR>\n" );
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document.write( "Same for the part c.\r<BR>\n" );
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document.write( "I respect &nbsp;\"Russian Math school\"&nbsp; very much, &nbsp;but in this case they are not correct . . . \r<BR>\n" );
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