a solid shape is made by joining two cones. each one has the same radius. one cone has slant height=2 x radius the other cone has slant height= 3 x radius the total surface area of the shape is 135.2pie cm^2 curved surface area of a cone= pierl where r is the radius and l is the slant height. work out the radius.

Marie will earn $15 per hour at a new job. during training, she will earn $10 per hour. what percent of marie’s regular hourly rate will she earn during training?

Which of the following is a justification used while proving the similarity of triangles lom and mon

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?