Answer:
591 square cm
Step-by-step explanation:
25 times 23 =575
4 times 4 =16
575 plus 16=591
Nina's rate is 12.7 mph and Sophia's rate is 10 mph. Therefore, Nina is faster.
Answer:
B and D
Step-by-step explanation:
If the shape of the room is a square, then the square root of the sum of the squares of the the two adjacent sides will give the diagonal.
i.e.
![\sqrt{17^2+17^2} = \sqrt{2(17^2)} \\ \\ = \sqrt{2(289)} = \sqrt{578} =24.04](https://tex.z-dn.net/?f=%20%5Csqrt%7B17%5E2%2B17%5E2%7D%20%3D%20%5Csqrt%7B2%2817%5E2%29%7D%20%20%5C%5C%20%20%5C%5C%20%3D%20%5Csqrt%7B2%28289%29%7D%20%3D%20%5Csqrt%7B578%7D%20%3D24.04)
Since the square root of the sum of the squares of the the two adjacent sides is 24.04 and not 18.79, therefore, the shape of the room is not a square.