All this is, is plugging in numbers. Then taking the square root of it. The first one would be the square root of 6 squared - 4(5)(-3). That would simplify to the square root of 36+60. Then add the numbers to get the square root of 96. The square root of 96 is about 9.798. I hope that helped. If you still need help with the second one or with the rest of the formula (if there is one) just ask!
The answer is 14
-18/6 is -3. add that to 17 and you get 14.
Tan (53) = tree height / 9 m
tree height = tan (53) * 9
tree height = 1.327 * 9
tree height = 11.943 meters
Answer:
nope sorry
Step-by-step explanation:
Answer: 23,5%
Step-by-step explanation:
% = 
= 0,235 = 23,5%
