Answer:
Step-by-step explanation:
Area of the specified region = Area of larger circle - Area of smaller circle
Larger circle:
r = 16 + 3 = 19 m
Area = πr²
=π * 19 * 19
= 361π m²
Smaller circle:
r = 16 m
Area = πr²
=π * 16 * 16
= 256π m²
Area of the specified region = 361π - 256π = 105π m²
We can factorise this to get (x-9)(x-9). To find the value, each bracket needs to equal 0, so the value would be x=9
Answer:
32/24
Step-by-step explanation:
opposite/ adjacent
1700m is the correct answer
Answer:
n = -3
Step-by-step explanation:
Let the number be n. Then (2/3)n-4 = 2n.
Solve for n. To accomplish this, start by mult. both sides by 3, to remove the fractional coefficient: 2n - 12 = 6 n, or -12 = 4n. then n = -3 (answer)