Answer:
A. 1
B. -10
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
B has a y-intercept of 4, greater than A's y-intercept of -4. This means that D is correct.
Answer:
2π
Step-by-step explanation:
When a circle's radius is 1—called a unit circle—its circumference is 2π.
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
4.50 is 450 percent
because it is greater than 1, we know it is more than 100%