Figure ABCD is a parallelogram. What is the perimeter of ABCD?
A
4y - 2
B
14 units
38 units
3x - 1
(2x+2
44 units
49 units
D
2y + 6
с

Answers; a) 135 degree’s b) 30 degree’s c) 180 or 0 degree’s d) 90 degree’s

Acertain population of bacteria demonstrates exponential growth doubles in size every 4 days. how long will it take the population to triple in size?

Is the power produced directly proportional to the wind speed, give reasons for your answer?