Answer:
14.3 feet
Step-by-step explanation:
Let the height of the tree = x feet.
It is given that the horizontal distance from the base of tree = 10 feet and the angle of elevation to the nest is 55°.
So, we get the following figure.
As, we are obtaining a right angled triangle.
Using the trigonometric form for the angles of a right angled triangle, we get,
i.e. 
i.e. 
i.e. 
i.e. 
Hence, the height of the tree is 14.3 feet.
y=1/2x-3
typing this to take up space ignore this
As the ratio is 8/5 the number of children would be 390x5/8 = 243.75 so 244 children
Answer:
Step-by-step explanation:
We are given:
And we want to solve for <em>x</em>.
First, we can add 49 to both sides:
Now, we can take the square root of both sides. Since we are taking an even root, we will need plus-minus. Hence:
Evaluate:
Subtract 7 from both sides:
So, we have two solutions:
Evaluate:
So, from least to greatest, our solutions are:
