there are 17 men, two of the men are to be chosen to make a pair to sing the second song Ben thinks the number of different pairs that can be chosen is 136 mark thinks that the number of different pairs that can be chosen is 272 who is correct ben or mark

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

Describe how you can act financially responsible.

1. 2. ∠b and ∠y are right angles. 3.? 4.? which two statements are missing in steps 3 and 4? ∠x ≅ ∠c △abc ~ △zyx by the sas similarity theorem. ∠b ≅ ∠y △abc ~ △zyx by the sas similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem.