How many hours total would be when you multiple 45 mins three times?

135 minutes (2 hrs and 15 minutes)

Step-by-step explanation:

Multiply 45 minutes times three to get 135 minutes. There are 60 minutes in two hours, so it would be 2 hrs. There are 15 minutes left after getting 2 hrs, so it's 2 hrs and 15 minutes.

the answer for this question is : 360°

step-by-step explanation:

we have been given a triangle   we need to tell which one of these is a triangle below to map onto itself.

360° rotation is the complete rotation which eventually leads to the same figure which is given.

the correct will be, that is 360° that will cause the triangle below to map onto itself.

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