A hat contains 5 scarves, three of which are brown. A bag contains 8 marbles, 3 of which are red. One scarf is randomly selected from the hat and one marble is randomly selected from the bag. Which expression gives the probability of selecting one brown scarf and one red marble?​​​​​​​ 35 + 38
35 + 38

15 + 18
15 + 18

(15) ×(18)
(15) ×(18)

(35) ×(38)
(35) ×(38)
​

Sarah used her calculator to find sin 125 degrees. she wrote down sin sin125 degrees.57. how could sarah recognize that her answer is incorrect?

How do i simply this radical expression?

For every corresponding pair of cross sections, the area of the cross section of a sphere with radius r is equal to the area of the cross section of a cylinder with radius and height 2r minus the volume of two cones, each with a radius and height of r. a cross section of the sphere is and a cross section of the cylinder minus the cones, taken parallel to the base of cylinder, is the volume of the cylinder with radius r and height 2r is and the volume of each cone with radius r and height r is 1/3 pie r^3. so the volume of the cylinder minus the two cones is therefore, the volume of the cylinder is 4/3pie r^3 by cavalieri's principle. (fill in options are: r/2- r- 2r- an annulus- a circle -1/3pier^3- 2/3pier^3- 4/3pier^3- 5/3pier^3- 2pier^3- 4pier^3)