4 correct to significant figures when t= 45 x 10^-3 seconds, C= 10×10^-6,R=47 x 10^-3,ohms and v= 200 V?​

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 f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)

Find the area of the regular hexagon if a side is 20 cm.