The area of the triangle is 24
Answer:
The answer is number 1. :)
Answer:
All rational numbers or all numbers
Step-by-step explanation:
The function is a linear positive slope equation, which looks like the screenie below. Lines always travel forever, and since it is a linear line with a slope, it will be forever going in both directions.
Domain is the x-values that a function has, while range is the y-values.
Since the domain and range are infinite, it is all real numbers.
Hope this helps!
Edit: forgot the image
I zoomed out 2 million units out so you get what im saying kinda
Answer:
cos(A)=sin(26.57°)=0.447
Step-by-step explanation:
we know that
In the right triangle ABC
The angle A and the angle C are complementary angles
so
∠A+∠C=90°
therefore
cos(A)=sin(C) -------> by complementary angles
we have
C=26.57°
sin(26.57°)= 0.447
Hence
cos(A)=sin(26.57°)=0.447
<em>Alternative Method</em>
In the right triangle BDC
![sin(C)=\frac{BD}{BC}](https://tex.z-dn.net/?f=sin%28C%29%3D%5Cfrac%7BBD%7D%7BBC%7D)
Find BD applying Pythagoras Theorem
![BD^{2}=BC^{2} -DC^{2}](https://tex.z-dn.net/?f=BD%5E%7B2%7D%3DBC%5E%7B2%7D%20-DC%5E%7B2%7D)
substitute the values
![BD^{2}=17.89^{2} -16^{2}](https://tex.z-dn.net/?f=BD%5E%7B2%7D%3D17.89%5E%7B2%7D%20-16%5E%7B2%7D)
![BD^{2}=64.0521](https://tex.z-dn.net/?f=BD%5E%7B2%7D%3D64.0521)
![BD=8\ units](https://tex.z-dn.net/?f=BD%3D8%5C%20units)
substitute the values
![sin(C)=\frac{8}{17.89}=0.447](https://tex.z-dn.net/?f=sin%28C%29%3D%5Cfrac%7B8%7D%7B17.89%7D%3D0.447)
![cos(A)=sin(C)=0.447](https://tex.z-dn.net/?f=cos%28A%29%3Dsin%28C%29%3D0.447)