Answer:
-3, -7
Step-by-step explanation:
either x + 3 = 0 --> x = -3
or x + 7 = 0 --> x = -7
All of the metric systems of measurement are base 10. What this means is that for every 10 of something, you get the next level of that. For instance, 10mm = 1cm.
What the United States uses for their measurement has random bases. For instance, 12 inches = 1 foot.
I can't really do the "show your work" part as well on a computer, but I'll do my best.
(a) $14.94 (2.49*6=14.94)
(b) $18.75 (150/8=18.75)
(c) $17.59 ($164.94 in total. So 182.53-164.94=17.59)
Hope this helps.
Given :
Two vertical buildings 57 meters apart are 158 meters and 237 meters high.
To Find :
The angle of elevation from the top of the shorter building to the top of the taller building.
Solution :
Distance between height of building, h = 237 - 158 = 79 m.
Distance between these building , d = 57 m.
Now,
![tan\ \theta = \dfrac{h}{d}\\\\tan\ \theta = \dfrac{79}{57}\\\\tan\ \theta = 1.386\\\\\theta = tan ^{-1} 1.386\\\\\theta = 54.19^{\circ}](https://tex.z-dn.net/?f=tan%5C%20%5Ctheta%20%3D%20%5Cdfrac%7Bh%7D%7Bd%7D%5C%5C%5C%5Ctan%5C%20%5Ctheta%20%3D%20%5Cdfrac%7B79%7D%7B57%7D%5C%5C%5C%5Ctan%5C%20%5Ctheta%20%3D%201.386%5C%5C%5C%5C%5Ctheta%20%3D%20tan%20%5E%7B-1%7D%201.386%5C%5C%5C%5C%5Ctheta%20%3D%2054.19%5E%7B%5Ccirc%7D)
Therefore, the angle of elevation from the top of the shorter building to the top of the taller building is 54.19°.
Hence, this is the required solution.