A closed circle means greater than or equal to and less than or equal to.
An open circle is greater than or less than.
You need to know the properties of each function.
Tan is opposite (y) over adjacent (x). Sin>0 means that sin is positive, therefore, it is located on either quadrant 1 or 2. Tan=4/3 so it is located in quadrant 1.
The side of the triangle must be Adjacent=3 opposite=4 and hypotenuse=5
Now, you are asked to find the half angle of Cos which is

By following the formula, cos=3/5 then:

Multiply everything (inside the square

root) by 5


Then just simplify

The answer is Square root of 20 over 5
The gcf of 36 and 72<span> is the largest positive integer that divides the numbers 36 and 72 without a remainder. Spelled out, it is the greatest common factor of 36 and 72. Here you can find the gcf of 36 and 72, along with a total of three methods for computing it. In addition, we have a calculator you should check out. Not only can it determine the gcf of 36 and 72, but also that of three or more integers including thirty-six and seventy-two for example. Keep reading to learn everything about the gcf (36,72) and the terms related to it. kmd</span>
Answer:
Your annual expected value is -$550.
Step-by-step explanation:
0.002 probability that you will total your car.
If you total your car, you pay the insurance of $600, but you get the $25,000 insurance. So in total, the net value will be $24,400.
1-0.002 = 0.998 probability that you will not total your car.
In this case, you lose $600.
What is your annual expected value?
Multiply each net value by it's probability.
E = 0.002*24400 - 0.998*600 = -550
Your annual expected value is -$550.
(Total number of questions on the test) - 20 .