Answer:
Equation have Unique solution with 
Step-by-step explanation:
Given Equation:

Solving the equation:

Adding 7 to both sides:

The Equation have Unique solution with 
Answer:
The area is 207 square feet
Step-by-step explanation:
*The area of the rectangle whose dimensions are 21 and 15 is 315 square feet
*The area of the rectangle whose dimensions are 12 and 9 is 108 square feet
*By subtracting the small area from the big area you will get the area of the polygon
*The area of the polygon = 315 - 108 = 207 square feet
Answer:
A = 11²/{4π}
Step-by-step explanation:
The circumference equation is C = 2πr. Thus, r = C / (2π), and:
C² (22π)² 2²11²π² 11²
r² = ---------- so, if C = 22π units, r² = -------------- = ---------------- = -------------
(2π)² (2π)^4 (2π)²(2π)² (2π)²
11²π²
or r² = ---------------
The area equation for a circle is A = πr² which here is π·11²/(2π)²
This reduces to 11²/{4π}
Step-by-step explanation:
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