1and 1/10 is correct
brainliest or nah lol
(C) sin(-r) = -a
(D) sin(r) = -a
<u>Explanation:</u>
The unit circle definition allows us to extend the domain of sine and cosine to all real numbers. The process for determining the sine/cosine of any angle θ is as follows:
Starting from (1,0) move along the unit circle in the counterclockwise direction until the angle that is formed between your position, the origin, and the positive x-axis is equal to θ.
- sin θ is equal to the y-coordinate of your point, and
- cosθ is equal to the xxx-coordinate.
In the question, sin(-r) = -a and sin(r) = -a is equal to the x-coordinate, thus they are not correct.
An image is attached for reference.
Step-by-step explanation:
there should 90 value
the value of triangle is 90
From the garden's area 150 sqf we can find out the length of one side. That is √150= 12.2- we have to <span>round to the nearest tenth
And the length of the fence is: 4.12.2= 8.48 or 8.5 feet
Have fun</span>