Answer:
12.15 for number 1
Step-by-step explanation:
Answer:
D. Undefined
Step-by-step explanation:
The graph of x=3 is a straight, vertical line. Therefore, the slope will be undefined.
Answer:
Step-by-step explanation:
The formula to find the area of a triangle:
Here, is the area, is the base and is the height.
However, we are looking for height, so let's rearrange the equation for :
Now we know the formula to find the height, let's do so:
Therefore, our final answer is .
Answer:
30°
Step-by-step explanation:
It's an equilateral triangle, which means that the angle at the center is 60°. The angle where the tangent line touches the circle is 90°. You have 2 out of 3 angles. Now all you have to do is subtract the two angles from 180°.
180 - 90 - 60 = 30