The graph of a quadratic function has a vertex of (3, 6) and passes through (1, 42). We can model the graph by using a function in the form of y = ax2 + b + c, where "a," "b,"
and "c" represent real numbers.
Find the value of "b".

The edge of a cube was found to be 30 cm with a possible error in measurement of 0.4 cm. use differentials to estimate the maximum possible error, relative error, and percentage error in computing the volume of the cube and the surface area of the cube. (round your answers to four decimal places.) (a) the volume of the cube maximum possible error cm3 relative error percentage error % (b) the surface area of the cube maximum possible error cm2 relative error percentage error %

The price of a dozen eggs was $1.63. suppose the price increases m dollars per dozen and then the price decreases $0.12 per dozen. which expression represents the current price of eggs after the two price changes?

Given sin28.4=.4756, cos28.4=.8796, and tan28.4=.5407 find the cos of 61.6