The formula given to us relates circumference with radius but we are given diameter instead. good thing we know that diameter is twice the length of radius so if diameter=28, the radius=14. therefore, using our formula, we can find the circumference:
C = 2(pi)(14)
C = 87.96
and this answer is close to 88 so the answer is A
let me know if you have any questions!!!
sum means addition ......... quotient means division
7 + 
= 
+
= 
<u>Answer:</u>
<u>Step-by-step explanation:</u>
- Perimeter: 2B + 2L
- => 2(3n - 7) + 2(n + 5)
- => 6n - 14 + 2n + 10
- => 8n - 4
<u>Conclusion:</u>
Therefore, the perimeter in terms of n is 8n - 4.
Hoped this helped.
Hello from MrBillDoesMath!
Answer: x^2 - 6.5x + 10.5 = 0
Discussion:
If the roots are 3 and 3.5, then the quadratic equation is
(x -3 ) ( x - 3.5) = 0
or
x * (x - 3.5) - 3 (x - 3.5) = 0
or
X^2 - 3.5X - 3X + 3(3.5) = 0
or
x^2 - 6.5x + 10.5 = 0
Thank you,
MrB
