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Question one 186

Question two 240

Step-by-step explanation: You multiply the variable (the letter) by the number that the person is using

1. 186

2. 240

Step-by-step explanation:

1. D =3w+60

D =3(42)+60

D =186

2. I =48t

I =48(5)

I =240

hope it you

step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2