The length of the base of a right triangle is twice the height. If the height is ten meters, find the area of the right triangle.

A) 20 m2
B) 60 m2
C) 100 m2
D) 200 m2

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.

A. 120 degrees b. 90 degrees c. 30 degrees d. 60 degrees

What is the expression equivalent to (3x^2-7)