GRE
w▼z
z▼w
AB+BC
AC
Probability of getting exactly two heads
Probability of getting exactly one tail
a
2b
Circumference of the circle
12π
y
The average (arithmetic mean) of x and z
$$The sum of the roots of x^{2}-9x+20=0$$
$$x^{2}+6x+8=0$$
$$1+\frac{y}{1+y}$$
$$1+\frac{1}{1+y}$$
$$3^{n}$$
$$n^{3}$$
The slope of the line with the equation 3x+4y=7
The slope of the line with the equation 3(x-2)+y=7-6(y+ 4)
The percent decrease from 20 to 16
The percent decrease from 24 to 20
25000 +道题目
5本备考书籍