Answer:
answer is A. cosine
Step-by-step explanation:
I think it is the associative property of Addition
Using relations in a right triangle, it is found that:
- Since x and y are complementary angles, we have that sin(xº) = cos(yº).
<h3>What are the relations in a right triangle?</h3>
The relations in a right triangle are given as follows:
- The sine of an angle is given by the length of the opposite side to the angle divided by the length of the hypotenuse.
- The cosine of an angle is given by the length of the adjacent side to the angle divided by the length of the hypotenuse.
- The tangent of an angle is given by the length of the opposite side to the angle divided by the length of the adjacent side to the angle.
The hypotenuse in this problem is given as follows:
![h^2 = 6^2 + 8^2](https://tex.z-dn.net/?f=h%5E2%20%3D%206%5E2%20%2B%208%5E2)
![h = \sqrt{100}](https://tex.z-dn.net/?f=h%20%3D%20%5Csqrt%7B100%7D)
h = 10.
The sine of x is:
![\sin{x} = \frac{6}{10} = 0.6](https://tex.z-dn.net/?f=%5Csin%7Bx%7D%20%3D%20%5Cfrac%7B6%7D%7B10%7D%20%3D%200.6)
The cosine of y is:
![\cos{y} = \frac{6}{10} = 0.6](https://tex.z-dn.net/?f=%5Ccos%7By%7D%20%3D%20%5Cfrac%7B6%7D%7B10%7D%20%3D%200.6)
Since x and y are complementary angles, we have that sin(xº) = cos(yº).
More can be learned about relations in a right triangle at brainly.com/question/26396675
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Answer:
Option D. h(2) = 16
Step-by-step explanation:
Verify each statement
case A) h(8) = 21
The statement is false
Because
we know that
h(8)=19 -----> given value
and
If h(8) = 21 then f(x) is not a function
case B) h(13) = 18
The statement is false
Because x=13 not belong to the domain of the function
case C) h(-3) = -1
The statement is false
Because
x=-3 belong to the domain
but
h(-3)=-1 not belong to the range of the function
case D) h(2) = 16
The statement could be true
Because
x=2 ----> belong to the domain of the function
h(2)=16 ----> belong to the range of the function