25 points A triangular prism has a height of 5.5 yards and a triangular base with the following dimensions.

What is the value of B?

41.25 yd 2
40 yd 2
120 yd 2
60 yd 2

60 sq yd

Step-by-step explanation:

B = area of the base of the prism = area of the triangle

  = bh/2           b = 15    h = 8

  = 8*15/2

  = 60 sq yd

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

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m