Answer:
18.7939 m
Step-by-step explanation:
-Let x be the distance between John and clock tower.
-Let y be the vertical distance from the eyes of the two men standing to the top of the clock tower.
#Taking the right triangle ACD:

#Taking the right triangle ABD:

#We equate the two yo solve for x and y;

Hence, John's distance from the tower's base is 18.7939 m
Answer:

Step-by-step explanation:
Coordinates of Point b
b lies on the circle whose equation is 

Comparing with the general form a circle with center at the origin: 
The radius of the circle =17 which is the length of the hypotenuse of the terminal ray through point b.
For an angle drawn in standard position through point b,
x=-8 which is negative
y=15 which is positive
Therefore, the angle is in Quadrant II.

31.51
r=−5
d=19
h<53
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
Answer: 2x
2
+5x−3
Step-by-step explanation:
2x
2
−x+6x−3
2x
2
+(−x+6x)−3