5. a draw bridge is about 54 ft long.
a seagull is sitting on the edge
of the drawbridge. if the
drawbridge is raised so that the
angle of elevation is 30°, how
high does the seagull rise?

Seagull is 27 ft high

Step-by-step explanation:

Given in the question,

length of bridge = 54ft

angle of elevation = 30°

It is a right angle triangle question and we will use trigonometry identity to the solve the question.

sinФ = opposite / hypotenuse

sin(30) = height / 54

height = 54(sin(30)

height = 27 ft

So, seagull is 27 ft high above the ground.

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.

the answer is; biodiversity resulting from few ancestors

adaptive radiation occurs when a population is subjected to a large natural environment with spatial ecological variations. the parts of the population in the different ecologies begin to adapt to their local environments. due to non-random mating across the large populations, this causes the different populations from the large population to speciate within their local environments. they, therefore, diverge to different species sharing a common ancestor.