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I love Neil deGrasse Tyson, but why is he always correcting the science in fictional movies? Why won't he let people have some fun? HELP!!! suppose that it is given that E(X)=4. What is E(32X+3) Suppose that it is given that V(X)=42.8. What is V(9 X + 98)? Why does sqrt(4)-sqrt(16) not equal two? If sqrt(4) equals +-2 and sqrt(16) equals +-4, then could you not say -2+4 = 2? HOW DO I LUBRICATE THE HEIGHT ADJUSTMENT SHAFT ON MY MODEL B3222 (GOALRILLA BACKBOARD). i CANNOT FIND A HOLD TO SPRAY WD-40 INTO IT.? Find all θ between 0 and 2π that satisfy the following: tan θ = -4.509 and cos θ > 0.?