A solid shape is made by joining two cones. Each cone 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 135.2 cm?
Curved surface area of a cone = ar where r is the radius and / is the slant height
Work out the radius.

In the diagram, the ratio of ab to ae is (1/2) . what is the ratio of the length of to the length of ?

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?

The fraction of defective integrated circuits produced in a photolithography process is being studied. a random sample of 300 circuits is tested, revealing 17 defectives. (a) calculate a 95% two-sided confidence interval on the fraction of defective circuits produced by this particular tool. round the answers to 4 decimal places. less-than-or-equal-to p less-than-or-equal-to (b) calculate a 95% upper confidence bound on the fraction of defective circuits. round the answer to 4 decimal places. p less-than-or-equal-to