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Law Incorporation [45]
3 years ago
11

A square has sides of length s. A rectangle is 6 inches shorter and 1 inch longer than the square. Which of the following expres

sions represents the area of the rectangle? Select all that apply.
S^2

(s+6)(s+1)

(s-6)(s-1)

(s-6)(s+1)

s^2 - 7s + 1

s^2 - 5s - 6

s^2 + 7s + 6
Mathematics
2 answers:
Semmy [17]3 years ago
5 0

Answer: Area of rectangle can be given by expressions:

(s-6)(s+1)\text {and }s^2-5s-6


Step-by-step explanation:

Given : A square has sides of length s.

According to the question,

Dimensions of new rectangles=(s-6)×(s+1)

Thus, Area of rectangle= (s-6)×(s+1)

=s^2-6s+s-6\\\Rightarrow\ s^2-5s-6

Thus , area of rectangle can be given by expressions:

(s-6)(s+1)\text {and }s^2-5s-6

Ivahew [28]3 years ago
5 0

Answer:

(s-6)(s+1) and s² - 5s - 6

Step-by-step explanation:

Suppose s represents the side length of the square,

∵ Rectangle is 1 inch longer than the square,

⇒ Length = (s+1) inches,

It is 6 inches shorter than square,

⇒ Width = (s-6) inches

∵ Area of a rectangle = Length × width

= (s+1)(s-6)

= s² - 6s + 1s - 6

= s² - 5s - 6

Hence, THIRD and FIFTH options are correct.

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Akimi4 [234]

Answer: X = 27

Step-by-step explanation: If we observe very closely, we have two similar triangles in the diagram. The first one is ABC and the other triangle is EDC. Also take note that angle ACB in the first triangle is equal in measurement to angle ECD (45 degrees) in the other triangle, (Opposite angles).

Hence in triangle ECD, we have identified two angles so far which are angle 2x + 10 and angle 45. Same applies to triangle ABC, we already have two angles which are, 3x - 10 and 45.

However angle D in the second triangle is equal in measurement to angle B in the first triangle

(Alternate angles).

Hence we have a third angle in triangle ABC which is

Angle B = 2x + 10.

Therefore 3x - 10 + (2x + 10) + 45 = 180

(Sum of angles in a triangle)

3x - 10 + 2x + 10 + 45 = 180

By collecting like terms we now have

3x + 2x = 180 + 10 - 10 - 45

5x = 135

Divide both sides by 5,

x = 27

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Answer:

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Step-by-step explanation:

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