Use the drop-down menus to complete each equation so the statement
about its solution is true.
No Solutions
2x + 9 + 3x + x =
x+
One Solution
2x + 9 + 3x + x =
Infinitely Many Solutions
2x + 9 + 3x + x =
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?

|p| > 3 {-3, 3} {p|-3 < p < 3} {p|p < -3 or p > 3}

Given: ae ≅ ce ; de ≅ be prove: abcd is a parallelogram. we have that ab || dc. by a similar argument used to prove that △aeb ≅ △ced, we can show that △ ≅ △ceb by. so, ∠cad ≅ ∠ by cpctc. therefore, ad || bc by the converse of the theorem. since both pair of opposite sides are parallel, quadrilateral abcd is a parallelogram.