A store has 2 times as many hooded sweatshirts as crewneck sweatshirts. The total number of sweatshirts is 36. How many hooded sweatshirts does the store have?
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what happens when lead nitrate react with potassium hydroxide
The sum of odd squares can be expressed as 1^2+3^2+5^2+ +(2n-1)^2=An^3+Bn^2+Cn+D. The value of A can be expressed as a/b, where a and b are positive co-prime integers. What is the value of a+b?
The most convenient way to express vectors in the two dimensional plane is in the familiar (x,y) Cartesian coordinates. However, one can express vectors in other coordinate systems as well. For example, another useful coordinate system for the plane is polar coordinates (r, ...
Bella keeps a supply of red, blue, and black pens in a drawer. The drawer has 13 red pens, 18 blue pens, and 8 black pens. If Bella wants a red pen, what is the minimum number of pens she has to pull out from the drawer to make sure she gets a red pen?
Calculate the work required to be done to stop a car of 1500kg moving with a velocity of 60km/hr?
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a beam of light consisting of two wavelengths 800nm and 600 nm is used to obtain the interference pattern in youngs double slit expt on a screen placed 1.4m away.if two slits are seperated by 0.28mm,calculate the least distance from the central bright maximum where the bright ...
the vertical component of earth magnetic field at a place is root3 times the horizontal component.What is the value of angle of dip at this place?
At what temp would an intrensic semiconductor behave like a perfect insulator?Why?