16² = 18² + 19² - 2(18)(19)cos(z)
256 = 324 + 361 - (684)cos(z)
256 = 685 - (684)cos(z)
-429 = -684cos(z)
cos(z) = -429/-684
z = cos⁻¹ (0.627)
z = cos⁻¹ (cos 51) [ Cos 51 = 0.627 ]
z = 51
In short, Your Answer would be: 51
Hope this helps!
The formula for the volume of a pyramid Is V = 1/3 Bh, where V is the volume, B is the area of the base, and h is the height of the pyramid. Cecilia
has a pyramid-shaped candle with a square base. The volume of the candle is 720 cm3 and the area of the base is 36 cm2
Answer:
-4+7h
Step-by-step explanation:
780miles/12 hours equals 65 miles per 1 hour. if you are going at the same rate, you multiply 65 miles times 5 hours to get 325 miles. he drove 325 miles in 5 hours
