Given m

2=50, which postulate or theorem proves m 2 4: 50?

a

parallel postulate

alternate interior angles theorem

consecutive interior angles theorem

corresponding angles postulate

d

Select the conic section that represents the equation. 3x2 + 3y2 -2x + 4 = 0

Point r divides in the ratio 1 : 5. if the coordinates of e and f are (4, 8) and (11, 4), respectively, what are the coordinates of r to two decimal places?

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?