Find the first four nonzero terms in a power series expansion about x0 for a general solution to the given differential equation with the given value for x0. y'-3xy=0; x0=-2

Phillip had some bricks. he stacked them in 6 equal piles. which expression shows the number of bricks phillip put in each pile? let the variable m stand for the unknown number of bricks. m + 6 m÷6    m−6    6m

Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?

What is the effect on the graph of the function f(x)=x when f(x) is replaced with -f(x)+4