Answer:
4+4=8
Step-by-step explanation:
Answer:
Step-by-step explanation:
BF is the angle bisector of ∠B.
Answer:
x = 180 -56= 124..... linear pair
y= 180 -39 =141 linear pair
Answer:
The tree is 20.6 ft tall.
Step-by-step explanation:
Please check the attached graph.
From the diagram, it is clear that John is 5 ft tall is standing 20 feet away from a tree, making an angle of elevation to be 38⁰.
The diagram makes a right-angled triangle.
- Given the angle = Ф = 38⁰
- Hypotenuse = Tree length = c ?
Pythagorean Theorem:
For a right-angled triangle, with sides 'a' and 'b', the hypotenuse 'c' is defined as:
![\:c=\sqrt{a^2+b^2}](https://tex.z-dn.net/?f=%5C%3Ac%3D%5Csqrt%7Ba%5E2%2Bb%5E2%7D)
substituting a=5, b=20
![c=\sqrt{5^2+20^2}](https://tex.z-dn.net/?f=c%3D%5Csqrt%7B5%5E2%2B20%5E2%7D)
![c=5\sqrt{17}](https://tex.z-dn.net/?f=c%3D5%5Csqrt%7B17%7D)
ft
Thus, the tree is 20.6 ft tall.
2 to the second power times a to the negative four power
-------------
four times a to the negative four power
2(2)*a(-4)
-----------
4a(-4)
Or if you can't use negatives
4
----
a(4)
Four overtop a to the fourth power
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