I have to find the missing value to the nearest hundreth for Cos__=9/20

Help please

To find the missing value, we need to find the angle whose cosine is equal to 9/20. To do this, we can use the inverse cosine function, often denoted as cos^(-1) or arccos.

Step 1: Open your calculator.
Step 2: Look for the "inverse cosine" or "arccos" button. It is usually represented as "cos^(-1)" or "cos⁻¹," and it may be located under the trigonometric functions or accessed through a secondary function mode.
Step 3: Press the "inverse cosine" or "arccos" button.
Step 4: Enter the value 9/20.
Step 5: Press the "equal" button or the "solve" button.
Step 6: Read the output on your calculator's screen. It will provide you with the angle whose cosine is 9/20, rounded to the nearest hundredth.

Note: The angle values obtained from the inverse cosine function are usually in radians. If you need the answer in degrees, you can convert it by multiplying the radian value by 180/π (approximately 57.2958).