(1) Area of the whole circle:
A = πr²
Substitute the value of BA to r,
A = (π)(10 ft)² = 314.16 ft²
(2) Area of the sector is calculated through the equation,
As = πr²(x/360°)
where x is the intercepted angle. Substituting the values,
As = π(10 ft)²(60°/360°) = 52.36 ft²
(3) Area of the equilateral triangle BAJ,
At = (√3)(a2²/4
where a is also equal to r or BA. Substituting,
At = (√3)(10 ft)²/4 = 43.30 ft²
The area of the region not shaded is equal to,
= (A) - (As - At)
Substituting,
= (314.16 ft²) - (52.36 ft² - 43.30 ft²)
<em>Area = 305.10 ft²
</em><em />Therefore, the answer to this answer is letter D. <em>
</em>
Hello from MrBillDoesMath!
Answer:
Choice A, 18x - 6y = 20
Discussion:
Given line
-9x + 3y = 12 (M)
Choice A:
18x - 6y = 20 => divide both sides by -2
-9x + 3y = -10 (N)
The left hand sides of (M) and (N) are equal implying that right hand sides are equal which further implies 12 = -10. Contradiction! so the system M and N has no solution.
Thank you,
MrB
Answer:
17:33
Step-by-step explanation:
if u are asking for the ratio of total boys to total girls the answer above is correct, if not im not sure what ur asking
Answer:
If you mean width then...
Step-by-step explanation:
4.2=4 1/5
4.2/2=2.1
Answer: w=2.1
check:
l*w=A, 2*2.1=4.2