Question

Please help bein timed!!

Sydney is cutting the crust from the edges of her sandwich. The dimensions, in centimeters, of the sandwich is shown.

A rectangle labeled sandwich. The right side is labeled 2 x squared + 9. The bottom side is labeled 2 x squared + 8.
Which expression represents the total perimeter of her sandwich, and if x = 1.2, what is the approximate length of the crust?

8x2 + 34; 43.6 centimeters
8x2 + 34; 45.52 centimeters
4x2 + 17; 21.8 centimeters
4x2 + 17; 22.76 centimeters

Answer 1

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GiveN:

• The adjacent sides of the sandwich are of length 2x² + 9 and 2x² + 8.

To FinD:

• Length of the crust of the sandwhich?
• If x = 1.2, approximate length of crust...?

Step-wise-Step Explanation:

The crust is the hard brown layer surrounding the sandwhich. To find the length of the crust, we need to find the perimeter of the rectangle.

• Rectangle have two pairs of equal sides. To find the perimeter, we can add all these sides that will be equal to 2(Length + Breadth).

By applying the formula,

⇒ Length of the crust = 2(l + b)

⇒ Length of the crust = 2(2x² + 9 + 2x² + 8)

⇒ Length of the crust = 2(4x² + 17)

⇒ Length of the crust = 8x² + 34

Now if x = 1.2, What will be the approximate value of the length of the crust:

⇒ 8(1.2)² + 34

⇒ 8(1.44) + 34

⇒ 11.52 + 34

⇒ 45.52 cm

Hence, The correct option will be Option B) 8x² + 34 and 45.52 cm. And we are done :)

Answer 2

Answer:

Please help bein timed!

Sydney is cutting the crust from the edges of her sandwich. The dimensions, in centimeters, of thPlease help bein timed!!

Sydney is cutting the crust from the edges of her sandwich. The dimensions, in centimeters, of the sandwich is shown.

A rectangle labeled sandwich. The right side is labeled 2 x squared + 9. The bottom side is labeled 2 x squared + 8.

Which expression represents the total perimeter of her sandwich, and if x = 1.2, what is the approximate length of the crust?

8x2 + 34; 43.6 centimeters

8x2 + 34; 45.52 centimeters

4x2 + 17; 21.8 centimeters

4x2 + 17; 22.76 centimeterse sandwich is shown.

A rectangle labeled sandwich. The right side is labeled 2 x squared + 9. The bottom side is labeled 2 x squared + 8.

Which expression represents the total perimeter of her sandwich, and if x = 1.2, what is the approximate length of the crust?

A. 8x2 + 34; 43.6 centimeters

B. 8x2 + 34; 45.52 centimeters

C. 4x2 + 17; 21.8 centimeters

D. 4x2 + 17; 22.76 centimeters