Answer:
The area of the shaded region is the difference between the areas of the rectangle and the square.
Step-by-step explanation:
Well, for the first question, the answers will be (a) 13 per row, because 13*13=169, and (b) a square, because the dimensions will be 13x13.
Answer:
second one is 3, the last one is 4560
Step-by-step explanation:
To get to simplest form find the greatest common factor, or the gcf, of both numbers. To do that find all of the factors and find the one with the highest value both numbers share. So 30 would have factors of 1, 2, 3, 5, 6, 10, 15, and 30, and 42 would have the factors of 1, 2, 3, 6, 7, 14, 21, and 42. Both numbers share the factors of 1, 2, 3, and 6 so the gcf is 6. Now divide both numbers by six to get your answer.
Answer: 5/7


Therefore, (1/7)³ = 1/343, implying that the answer is option (D).
Hope it helps. :)