Answer:
15 degrees
Step-by-step explanation:
Draw a horizontal segment approximately 4 inches long. Label the right endpoint A and the left endpoint C. Label the length of AC 4.2 meters. That is the horizontal distance between the eye and the blackboard.
At the right endpoint, A, draw a vertical segment going up, approximately 1 inch tall. Label the upper point E, for eye. Label segment EA 1 meter since the eye is 1 meter above ground.
At the left endpoint of the horizontal segment, point C, draw a vertical segment going up approximately 2 inches. Label the upper point B for blackboard. Connect points E and B. Draw one more segment. From point E, draw a horizontal segment to the left until it intersects the vertical segment BC. Label the point of intersection D.
The angle of elevation you want is angle BED.
The length of segment BC is 2.1 meters. The length of segment CD is 1 meter. That means that the length of segment BD is 1.1 meters.
To find the measure of angle BED, we can use the opposite leg and the adjacent leg and the inverse tangent function.
BD = 1.1 m
DE = 4.2 m
tan <BED = opp/adj
tan <BED = 1.1/4.2
m<BED = tan^-1 (1.1/4.2)
m<BED = 15
Answer: 15 degrees
Answer:
D: All real numbers
R: All real numbers
Step-by-step explanation:
Another way to put this would be (-∞, ∞) for both, but your teacher has asked for the word statement. The reason it's all real numbers is because both the domain and range continue on forever. There's no ending point.
36 blue beads and there would be 24 orange 3:2
Answer:
i cant help if theres no link or anything
Step-by-step explanation:
Answer:
t = 2.59077022, −0.14179062
Step-by-step explanation:
−12±√(12^2)−4)(−4.9)(1.8)/2(−4.9)