Simplify: (7x2 - 8x - 4) + (-2x2 + 3x + 5) + (5x2 - 10x - 8)

a 10x2 + 15x - 7

b 10x2 + 5x - 7

c 10x2 - 15x - 7

d 10x2 - 15x - 9

if 23 and 40 are two lengths of a right triangle, give two possible values for the length pf the 3rd side

What is the quadratic formula song?

A right triangle has a hypotenuse of 37 cm. the length of one leg is 3 times the length of the other. what is the area of the triangle?

How do you simplify 267/45

Diego bought a book for $13.50. Sales tax is 7%. What is the total cost of his purchase? (show work)

The distance d traveled at a constant speed r is directly proportional to the time t spent traveling. a car moving at a constant speed travels 150 miles in 2.5 hours.

The Suarez family pay $23.25 for three movie tickets at the rate could the family use a $100 gift certificate to buy 12 tickets

If the value of dependent variable y increases as the value of the independent variable x increases the graph of this relationship could be a? A. Horizontal line B. Vertical line C. Line with a negative slope D. Line with a positive slope

An angle measures 106° less than the measure of its supplementary angle. What is the measure of each angle?

Camilla is 14 years old. She is one-third of her teacher's age. How old is her teacher?