Answer:
The number is -3.
Step-by-step explanation:
X = a number
X + 12 = 9
Rearrange to get X on its own.
X = 9 - 12
X = -3
Answer:
500000 cm2
Step-by-step explanation:
a) 1,000 + 0 + 40 + 9
b) 40,000 + 3,000 + 800 + 70 + 0
c) 8,000,000 + 100,000 + 5
The best estimate for the diagonal of the rectangle is 3 ⇒ B
Step-by-step explanation:
In a rectangle:
- The length and the width are perpendicular
- The length of its diagonal =
(the diagonal is the hypotenuse of a right triangle whose legs are the length and the width of the rectangle)
∵ The width of a rectangle = x
∵ The length of the rectangle = 2x
∵ The diagonal = 
- Substitute the length by 2x and the width by x
∴ The diagonal = 
∴ The diagonal = 
∴ The diagonal = 
∵ x = 1.33
- Substitute the value of x by 1.33 to find the diagonal
∴ The diagonal = 
∴ The diagonal = 2.973
∴ The diagonal ≅ 3
The best estimate for the diagonal of the rectangle is 3
Learn more:
You can learn more about the rectangles in brainly.com/question/13084321
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