Answer:
B. 254.3 m^2
area of a circle= pi×radius^2
A= pi×9^2
In general, a rhombus' diagonals have different lengths. This limits the rotational symmetry order to be 2, namely, it gets back to the same shape by rotating 180 degrees. There is a special kind of rhombus where the diagonals have equal lengths, in which case the rhombus has order of rotational symmetry of four. We also call this special kind of rhombus a square.
Answer is provided in the image attached.
A. -2 6/7, -3/2, 2.25, 2 1/3
B. 10:00 AM and 4:00 PM
C. The biggest change was 2.25 to -2 6/7, or 4:00 AM to 10:00 AM
D. I'm not sure what part C is referring to so I can't help with that one.
E. I believe it will decrease since it tends to decrease as the day goes on and then increase once again. (that seems to be the pattern, at least)
Answer:
The unit rate per cup is 4g/cup