A tree is represented by segment T1 to T2. The length of the shadow of the 5 points tree (T1 to S1) is 12 yards, the height of the stick (S1 to S2) is 0.8 yards, and

the length of the shadow of the stick (S1 to G1) is 1.5 yards. How can you

prove the triangles are similar?*

For which rational expression is -2 an excluded value of x?

1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?

One side of a rectangle is 7 centimeters shorter than six times the other side. find the length of the longer side if we also know that the perimeter of the rectangle is 266 centimeters.