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Answers by Amarjeet K.

πr2h = 1.84 ft3 /min  - as long as flow rate is constant and independent of height of water in the pool.   3.14 x 152ft2 x h = 1.84  ft3 /min calculate h :)

distance between two points whose coordinates are x1y1 and x2y2  ü√(y2-y1)2 + (x2-x1)2   In this case a and b are on x axis and their y coordinates are 0. Plug in values x2 = b and x1=a   Distance = b-a   also we know absolute value of b-a is...

Math help!!! (answer)

Assume Bert started with x money   spent on notebook = 4.75   Remaining money = x-4.75   spent on text book = 1/2 (x - 4.75)   remaining money = (x - 4.75) - 1/2(x - 4.75) = 1/2(x - 4.75)   spend on sheet music = 4   remaining...

Math help!!!! (answer)

Second plan will fetch him = .25 + .5 + 1 + 2 + 4 + 8 + 16 + 32 + 64 + 128 = 255.75   second plan would be most profitable.   :)

Assume 100 beans in the soup   Lentils = 36/100  x 100 = 36   Green = 33.33/100   x 36 = 12   If green lentils are removed left beans = 100 - 12 = 88   Left beans = 88/100  x 100 = 88% of original beans   x = 8...

Word problem (answer)

Consider this as a right angle traingle problem.   Distance travel by Northbound car represent vertical side of traingle = 12 miles   Distance traveled  Eastbound car  represent base of traingle = x miles   Distance between the care is represented...

When this curve rotates about x axis it will look like a trapeziod with radius of 1 unit (√(2-1))at one end and radius of 4 units (√(5-1)) at another end  with height of 3 units (5-2=3_like a chopped off cone.   You can use calculus   volume of an infinite...

Its a unique point where relative position of distributed mass sums to zero. In other words its a imaginary point where the entire mass of a body or system of bodies is suppose to act. It can be with in a body or outside the body depending on the distribution of mass.   In simple words...

(f+g)(x) = 5x2 -4x +2 + 4x -6 = 5x2 - 4   (f*g)(x) = (5x2 -4x +2)(4x -6) = 20x3 - 16x2 + 4x - 30x2 +24x - 12 = 20x3 - 46x2 +28x -12 :)

Use 9 years as base year Find increment per year from 9 to 15 years => (46687 - 41350)/6 = 889.5   (A)salary = 41350 + 889.5n where is n is numer of years of experience in addition to 9 years (B) salary in 10 years = 41350 + 889.5x1 = 40,460.5   (C)...