GRE
The area of square region ABCD
20
The number of members in the club who are older than 24 years and right-handed
10
The average (arithmetic mean) of the 8 remainders recorded
3.5
The number of prime numbers between 4 and 15
The number of prime numbers between 16 and 30
$$S_8$$
$${\frac{1}{2^{13}}}S_{21}$$
The area of the circle
$$\frac{1600}{π}$$
The area of the shaded region
The sum of the areas of the unshaded regions inside the circle
25000 +道题目
236本备考书籍