The vector a and the vector b are shown on the grid. y
6
a) Write a as a column vector.
4
to
2
b) Work out 2a - b as a column vector.
х
O
2 4 6 8

Determine if the equation defines y as a function of x: 2xy = 1. yes o no

The equation of a parabola is given. y=18x2+4x+20 what are the coordinates of the focus of the parabola?

Afootball quarterback has two more chances to throw a touchdown before his team is forced to punt the ball. he misses the receiver on the first throw 25% of the time. when his first throw is incomplete, he misses the receiver on the second throw 15% of the time. what is the probability of not throwing the ball to a receiver on either throw?