The magnitude of vector a ist 3 units and the magnitude of vector b is 4 units you know that (vector a - 0.5vector b)•(vector a + vector v) equals 0.
what‘s vector a • vector b

Shania's test scores in 8 subjects were 88, 91, 85, 74, 69, 72, 80, and 87. shania found the middle number of her scores. which type of measure did she find?

The table shows the balance of a money market account over time. write a function that represents the balance y(in dollars) after t years.

Weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. find the probability that a worker selected at random makes between $450 and $500