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Answers by Tim E.

if I read this right, and the square root is of the quantity (2x+5)   SQRT(2X+5) = X + 3     square both sides   2X + 5 = (X+3)^2   2X + 5 = X2 + 6X + 9     combine terms, and put all on...

Interest = 2.65%   Initial Value = $10,000   after 1 year, the value is   10,000 x 1.0265 = 10,265.00 after 2 years, the value is 10,000 x 1.0265 x 1.0265 so each year the previous value is just mult by 1.0265   i    year   ...

mean = 82 1 std dev = 5 2 std dev = 10   for a normal distribution  +/- 1 std dev = 68.2 %   or 34.1% to each side of the mean +/- 2 std dev = 95.4 %   or 47.7% to each side of the mean   I hope this graphically shows the...

Find the time (answer)

THE PHYSICS EQN IS JUST  X = ACC*T2/2  + V*T + X0   FOR BOTH CARS, THEY HAVE NO INITIAL SPEED V1  OR DISPLACEMENT X0   SO X = ACC*T2/2    CAR A HAS ACC = 5.5  BUT LEAVES 1.5 SEC AFTER CAR B CAR B HAS ACC = 4.4   XB...

the number of each coin times their value is the total amount, so   P = number of pennies N = number of nickels D = number of dimes   so we can write our total cents equation:   P(1) + N(5) + D(10) = 64      ! numbers...

the question doesn't say how many dolls.  there would be an infinite number.  But we'll just form the equation for the nth doll.      Largest doll =  12 inches 2nd doll      =  (12) x 0.7 3rd doll      =  (12...

4/(X+5) < 1/(2X+3)   FIRST MULTIPLY BOTH SIDES BY (X+5), AND THEN (2X+3) THIS IS THE EQUIVALENT OF CROSS MULTIPLYING       4(2X+3) < X+5       OR    8X + 12  <  X + 5   NOW...

True or False? (answer)

2Y = 5X + 4   IN SLOPE INTERCEPT FORM, SOLVE THE EQUATION FOR Y WHERE  Y = MX + B    SLOPE = M, AND B = Y INTERCEPT   Y = (5/2)X  + 4/2      OR    Y = (5/2)X + 2   THEREFORE, THE SLOPE = 5/2  ...

  2/3 lbs  divided among 12 people   so,  (2/3) / 12       this can be written as  2/3 * 1/12  = 2/36   factor num and denom by 2     each person would get  1/18 lb

  Set up as an inequality so the pay is at least as much as $90,000   43,800 + 2950*T  >=  90,000         Now just solve for T.  first subt 43,800 from each side   2,950*T  >=  90,000 - 43,800  ...