Hamid has 20 T-shirts. The information shows the colours of his T-shirts.

7 black
4 dark blue
4 red
1 light blue
2 white
2 grey

Hamid is going to take one of his T-shirts at random...

A) What is the probability that the T-shirt will be grey?

B) What is the probability that the T-shirt will not be red?

C) He takes one of his blue T-shirts at random. What is the probability that the T-shirt is light blue?

PLS HELP THX SO MUCH!!!

answer: the answer is (b) amie should have multiplied

step-by-step explanation: given a sphere and a cylinder with same radius and height.

let, 'r' be the radius of the cylinder and sphere and 'h' be the height of the cylinder. according to the question,

r = h.

now, the volume of the sphere will be

and the volume of the cylinder will be

therefore, we have

thus, ammie should have multiplied the volume of the sphere

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92