It will be 25%
Step-by-step explanation:
Answer:
Step-by-step explanation:
The area outside of the semicircle is the difference of the areas of the rectangle and the semicircle.
<u>Area of rectangle:</u>
<u>Area of the semicircle:</u>
<u>The area we are looking for is:</u>
- A = A₁ - A₂
- A = w² + 5w - 1/8πw²
Correct choice is A
In mathematics, number sequences are classified into three types: arithmetic progression, geometric progression and harmonic progression. Arithmetic sequences have a common difference, geometric sequences have a common ration, while harmonic progression is just the reciprocal of the arithmetic progression.
The first term of the arithmetic sequence is 5, followed by three. Therefore, the common difference is, 3-5 = -2. You use these values to the derived formulas for arithmetic progression. One of these formulas is
An = A1 + (n-1)d
where
An is the nth term in the sequence
A1 is the first term of the sequence
n is the totla number of terms within the sequence
d is the common difference.
In this problem, A1 = 5 and d=2. Substituting to the equation,
An = 5 + (-2)(n-1)
An = 5 - 2(n-1), where n should be more than 1. In order for it to become a sequence, it should contain more than one term.
So, the answer is letter D.
