Use the diagram shown. Two intersecting lines form four angles, 1, 2, 3, and 4. Angles 1 and 2 are adjacent angles and angles 1 and 3 are vertical angles.

If m∠1 = (4x + 2) and m∠3 = (5x – 15), what is the value of x?
A. 14
B. 15
C. 16
D. 17

Segment ab is shown on the graph. which shows how to find the x-coordinate of the point that will divide ab into a 2: 3 ratio using the formula

The angles in a triangle are represented by 5x, 8x, and 2x+9. what is the value of ? a.10.8 b.11.4 c.9.7 d.7.2

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?