Answer:

Step-by-step explanation:
The formula to find the area of a circle is

We know that

Therefore the area is

Answer:
The coefficient of x becomes 4. Hope it helps you
Step-by-step explanation:
B and C are both x-intercepts
An x-intercept occurs anywhere that a line or point touches the x-axis while y=0. With these answer choices, B and C are both values that happen on the x-axis, while y is equaling 0.
Answer:
18
Step-by-step explanation: