How to find a vector in the null space of a matrix?

The function d (x) represent the distance traveled by a train traveling 80 mph during t hours after 1:00 pm. what does d (5) - d (2) represent?

The cost of seeing a weekday show is 2/3 the cost of a weekend show. in one month, andy spent $42.50 for 4 weekday shows and 3 weekend shows. find the price of a weekday show and the price of a weekend show

What is 20 times two fifth

Eric used to practice football for 90 minutes every day. Now, he practices 200% as many minutes as he used to. How many minutes does he currently practice every day?

Solve for b 2 (b-2) = 2b+9

Solve this inequality: 8z + 3 - 2z < 51 A. z < 9 B. z < 14 C. z < 8 D. z < 5.4

8-i3-2i If the expression above is rewritten in the form a+bi, where a and b are real numbers, what is the value of a? (Note: i=-1)

One third of a birds eggs hatched. if 2 hatched, how many eggs did the bird lay

Find two numbers x and y such that their sum is 60 and x2y is maximized.

Sandy has 24 board games 1/3 of the games are missing pieces how many of the games are missing pieces