Final answer:
You need the other side of the rectangle to find the missing length for x if the area is 44m². The area of a rectangle in square millimeters is calculated by multiplying its sides in centimeters and then converting to millimeters. The area of a square that has double the side length of another will be four times greater.
Step-by-step explanation:
To calculate the missing length for x in a rectangle with an area of 44m², you need one of the rectangle's other sides. Without this information, you cannot determine the missing length. If the length or the width is known, you would use the formula area = length × width to find x. For example, if the width is given as 11 meters, then x, the length, would be the area divided by the width, which in this case is 44m² ÷ 11m = 4m.
For the area in square millimeters of a rectangle with sides 2.44 cm and 6.077 cm, you multiply these two lengths. Since 1 cm² is equal to 100 mm², the calculation would be 2.44 cm × 6.077 cm × 100 mm²/cm², which gives you the area in square millimeters with the correct significant figures.
Marta's second square is twice the size of her first square with a side length of 4 inches, the area of the larger square will be four times the area of the smaller square because area scales with the square of the length increase.
To convert the garden plot dimensions from centimeters to meters, you divide each dimension by 100 since 1 meter is 100 centimeters. Therefore, the area in square meters is 0.367m × 1.288m, and you express this result in the correct number of significant figures.