What is the equation for a geometric sequence with a first term of 3 and a second term of −9? an = 3(−12)n − 1 an = 3(12)n − 1 an = 3(−3)n − 1 an = 3(3)n − 1?

Thales was an ancient philosopher familiar with similar triangles. one story about him says that he found the height of a pyramid by measuring its shadow and his own shadow at the same time. if the person is 5-ft tall, what is the height of the pyramid in the drawing?

If, while training for a marathon, you ran 60 miles in 2/3 months, how many miles did you run each month? (assume you ran the same amount each month) write your answer as a whole number, proper fraction, or mixed number in simplest form. you ran __ miles each month.

Triangle knm is what is true about the sides of knm