新
If 1+x+x^2+x^3=60, then the average (arithmetic mean) of x, x^2, x^3, and
x^4 is equal to which of the following?
A 12x
B 15x
C 20x
D 30x
E 60x
这个题直接在等式的两边乘以x就好了,然后除以4,答案就是B
新
If 1+x+x^2+x^3=60, then the average (arithmetic mean) of x, x^2, x^3, and
x^4 is equal to which of the following?
A 12x
B 15x
C 20x
D 30x
E 60x
这个题直接在等式的两边乘以x就好了,然后除以4,答案就是B
热门院校
SUNY College of Technology at Canton
the University of British Columbia
Vancouver School Board
West Michigan College of Barbering and Beauty
Hamilton Boys’ High Scholl
Philopateer Christian College
The Royal School
Rutgers,the State University of New jersey-Newark
Trinity Baptist College
Brisbane Adventist College
Andrew College
Architectural Association School of Architecture
Western Carolina University
The University of Edinburgh
Kimbolton School
Widener University
Ohio Center for Broadcasting-Colorado
Bury Grammar School Boys