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Answers by Parviz F.

equations? (answer)

d = √((27-4)^2 + (22- 5) ^2) =28.6   r = 28.6/2 = 14.3   Center ( (22 +5)/2 , (27+4)/2 ) = ( 27/2, 31/2)      Equation of a circle  ( X - 27/2 ) ^2 + ( Y - 31/2) ^2 = (14.3 ) ^2= 204.50

GCF of 2 or more term is the product of the common factors with lowest exponents:     X^3 Y^2 + X^2 Y^2 + X^2 Y  (1)    X^2 Y  is the GCF of the terms of the above expression:     To Factor the above expression:      ...

Y = X^2 + 9X + 20     Choose 2 number a, b such that  a+b = 9   ab = 20                       a = 4 & b= 5 will be the answer:    ...

factorize please (answer)

Seems like a coefficient of 3 is missing from your cubic term.    - 3 X^3 + 5 X^2 - 5x + 3 =   - 3 ( X^3 - 1) + 5X ( X - 1 ) =      -3 ( X -1 ) ( X^2 + X + 1 ) + 5X ( X - 1 ) =       ( X - 1...

Equation of Line L2= m2X + b2 Perpendicular to L1 : 3X + 4y = 13 passing through ( 2, 7)         L1 :              y = -3/4 X + 13/4             ...

 I don't know what R5,95 is but it seems like should be R5.95     So , it looks like is unit scale for some measurement.      1 is R5.95, then 12.5 will be 12.5 times as much.      12.5 * R5.95 =R 74.375      ...