What is ( x − 4 ) ( 2 x + 10 ) when simplified? 2 x 2 + 40 2 x 2 + 40 2 x 2 + 2 x − 40 2 x 2 + 2 x − − 40 2 x 2 − 2 x − 40 2 x 2 − − 2 x − − 40 2 x 2 − 40

Lems1. the following data set represents the scores on intelligence quotient(iq) examinations of 40 sixth-grade students at a particular school: 114, 122, 103, 118, 99, 105, 134, 125, 117, 106, 109, 104, 111, 127,133, 111, 117, 103, 120, 98, 100, 130, 141, 119, 128, 106, 109, 115,113, 121, 100, 130, 125, 117, 119, 113, 104, 108, 110, 102(a) present this data set in a frequency histogram.(b) which class interval contains the greatest number of data values? (c) is there a roughly equal number of data in each class interval? (d) does the histogram appear to be approximately symmetric? if so,about which interval is it approximately symmetric?

Acircle has a circumference of 28.36 units what is the diameter of the circle

Rhombus adef is inscribed into a triangle abc so that they share angle a and the vertex e lies on the side bc . what is the length of the side of the rhombus if ab=c, and ac=b.