HCF of x5+x4+1 and xs+x+1 is
A. x2+x-1
B. x2+x+1
C. x2-x+1
D. x2-x-1 ​

State whether weight is a function of height for the six students and explain. a. yes, height is a function of weight because two students weigh 165 pounds but have different heights. b. no, height is not a function of weight because two students weigh 165 pounds but have different heights. c. yes, weight is a function of height because for each value of height there is one corresponding value of weight. d. no, weight is not a function of height because there is not enough data to determine a function.

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16