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Answers by Tim E.

C(x) should be vertically dilated by a factor of 3.   It doesn't what C(X) is, if linear or a quadratic, etc. Vertically it is just multiplied by 3 since it is zero at time = 0

OK, I ASSUME YOU MEAN   4 / (SQRT(2) + 3)    CORRECT ??   IF SO, TO RATIONALIZE WE NEED TO REMOVE THE SQRT FROM THE DENOM.    WE DO THAT BY MULTIPLYING NUMBERATOR AND DENOMINATOR BY  THE CONJUGATE   THE CONJUGATE IS USING...

let X = NUMBER OF EGG SANDWICHES let Y = NUMBER OF TUNA SANDWICHES     SO THE RATIO  X/Y  =  2/3     NOW,  X / (Y + 15)  = 1/3      SO WE HAVE 2 EQUATIONS, 2 UNKNOWNS.    CROSS MULTIPLY...

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...