Answer:
The area of hub cap is 452.16 square centimeters.
Step-by-step explanation:
We are given the following in the question:
Radius of hubcap = 12 cm
A hubcap is of the shape of circle.
Area of hubcap = Area of circle
Area of hubcap =
where r is the radius of the hubcap.
Putting the values, we get,
Thus, the area of hub cap is 452.16 square centimeters.
we know that
pounds of strawberries cost 
so
by proportion
<u>Find the cost of 
pounds of strawberries</u>
therefore
<u>the answer is</u>
F + s = 10
| f - s | = 18
-------
This means that:
f = 10 - s
And also that:
| f - s | = 18
(f-s)²=18²
f²- 2sf + s² = 324
But f=10-s
So...
(10-s)² - 2s(10-s) + s² = 324
(10-s)(10-s) - 20s + 2s² + s² = 324
100 - 20s + s² - 20s + 2s² + s² = 324
4s² - 40s + 100 = 324
4s² - 40s + 100 - 324 = 0
4s² - 40s - 224 = 0
1/4 * (4s² - 40s - 224) = 1/4 * 0
s² - 10s - 56 = 0
(s-14)(s+4)=0
So s can be either 14 or -4.
When s = 14, f = -4.
When s = -4, f = 14.
Answer:
B
Step-by-step explanation:
add 7 to get away the 7 on the left hand side
square both side to eliminate square root
