Given vectors a = (1,2), b = (2,-1), find 4a-3b

Total of 50 students 20 girls play lacrosse 20 boys play either soccer or lacrosse 20 students play soccer what is the probability that a student plays soccer or is a girl?

Jeff has a square piece of art paper. He cuts across it from one corner to the opposites corner to make two pieces. What is the total number of sides and angels in both of the new shapes

The function fx=-x^2-7x+30 shows the relationship between the vertical distance of a driver from a pools surface f (x) in feet and the horizontal disticance x, in feet of a driver from the driving board what is a zero of f (x) and what does it

What is the inverse of f (x) = 9x-8

What answer should be reported, with the correct number of significant figures, for the following calculation? (965.43 * 3.911) + 9413.

Is the triangle with the vertices A (7,3), B (0,7), and C (-3,-2) a right triangle?

Sacha has a box of antique letters. She wants to gave an equal number of letters to each of her 5 friends. how many antique letters will each friend receive?

What is the slope of (3,8) and (2,5)

the first truck in a convoy will carry 12 tons of dirt while each additional truck will carry 8 tons of dirt write a rule to model the situation then

Are the ratio 2.5:3.5 and 5:7 proportional?