Answer:
The width of the andre is 5×5×5=15
Then surface area will be length ×width=15×10=50
Given problem is 
To simplify that we need to multiply and divide by conjugate of the denominator
conjugate of denominator 6+i will be 6-i as we just need to change sign of the imaginary part
Now multiply and divide by 6-i







Hence final answer is 
Answer:
h = 33°
Step-by-step explanation:
180° = 90° + h + 57°
h = 180° - 90° - 57°
h = 180° - 147°
h = 33°
The correct answer is 13.86.
In order to find this, we must first note that the tangent of any angle is equal to the opposite side length over the adjacent side length. If we use that formula and the 60 degree angle, we can find y.
Tan(angle) = Opp/Adj
Tan(60) = y/8
8Tan(60) = y
13.86 = y