Simplify the expression.

2x3y + 7x3y - xy2

Select the correct answer. Use the discriminant to determine the number of real solutions to the quadratic equation given below. two real solutions one real solution infinite solutions no real solutions

If f (x) = x2 + x, find f (-3).

During a wind storm, two guy wires supporting a tree are under tension. One guy wire is inclined at an angle of 35 degrees and under 500 N of tension. The other other wire is inclined at 40 degrees to the horizontal and is under 400 N of tension.

Whats 3/4 of 12 cause its a hard problem fir. e

Mariah earns $32.75 per week working as a pet sitter. She worked as a pet sitter for 2 weeks. She previously saved $70.99 in allowance money. She spent $12.25 of her total earning to buy video games.

Kari is flying a kite. She releases 50 feet of string. What is the approximate difference in the height of the kite when the string makes a 25° angle with the ground and when the string makes a 45° angle with the ground? Round to the nearest tenth.

On Saturday, Mark sold gallons of lemonade. On the same day, Regan sold as much lemonade as Mark. How much lemonade, in gallons, did Regan sell?

What is the common denominator of 3/14 - 6/14

Neal Selznick bought a new van for $10,000. Neal put down $1,000 and paid $275 monthly for 40 months. What is the total amount of finance charge that Neal paid at the end of 40 months?

Which is greater 7,500,000m or 750km