When you round to the nearest hundredth, you round to two numbers after the decimal place
So the answer is 80.16
The 5 becomes a 6 because the number after it (9) is larger than 5
Hope this helps
Answer:
f(3) = 15. Correct: D)
Explanation:
<u>Numeric Value of a Function</u>
The value of a function f(x) when x = a is calculated by replacing the x for a. We have the function:
![f(x)=x^2+5x-9](https://tex.z-dn.net/?f=f%28x%29%3Dx%5E2%2B5x-9)
It is required to find f(3), or the numeric value of f when x=3. Replace x for 3
![f(3)=3^2+5(3)-9](https://tex.z-dn.net/?f=f%283%29%3D3%5E2%2B5%283%29-9)
![f(3)=9+15-9](https://tex.z-dn.net/?f=f%283%29%3D9%2B15-9)
![f(3)=15](https://tex.z-dn.net/?f=f%283%29%3D15)
A) Incorrect. f(3) is not 7
B) Incorrect. f(3) is not 10
C) Incorrect. f(3) is not 9
D) Correct. f(3) =15 as found above.
Answer:
The rug has covered approximately 95 square feet of the living room.
Step-by-step explanation:
Given:
Diameter of rug = 11 feet
We need to find the area covered in living room by the rug.
Solution:
Diameter of rug = 11 feet
Radius is half of the diameter.
Radius of the rug = ![\frac{11}{2}=5.5\ ft](https://tex.z-dn.net/?f=%5Cfrac%7B11%7D%7B2%7D%3D5.5%5C%20ft)
Now it has been given that rug is in circular shape.
So we will find the area of the rug using Area of circle formula which is given by π times square of the radius.
Framing in equation form we get;
area of the rug = ![\pi r^2 = 94.99\ ft^2 \approx 95\ ft^2](https://tex.z-dn.net/?f=%5Cpi%20r%5E2%20%3D%2094.99%5C%20ft%5E2%20%5Capprox%2095%5C%20ft%5E2)
Hence The rug has covered approximately 95 square feet of the living room.