Question

求助两道GRE数学题。

求助两道数学题：
1）一个cube total surface area 382 square ft,求所有边长
2）If N is positive number, the prime number of between N+1 and N+6 cannot be

Answer 1

1)设立方体边长为x，则6*x^2=382 x=7.979 ft
2)N>0,设the prime number 为x
因为N+1>1,N+6>6,所以x>1,so 木有啊

Answer 2

设立方体边长为x，则6*x^2=382 x=7.979 ft
2)N>0,设the prime number 为x
因为N+1>1,N+6>6,所以x>1,so

Answer 3

1)设正方体边长为a S=6*a^2=382 a^2=191/3 a=7.979 ft