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Evgesh-ka [11]
3 years ago
9

Will give brainliest if answer is correct.

Mathematics
2 answers:
adoni [48]3 years ago
8 0

Answer:

Let x cm be the width of the photograph.

Length of photograph

= (2x-1)cm

Area of photograph

= (2x-1)(x)

= x(2x-1)

= (2x²-x)cm²

(2x²-x)cm²=91cm²

       2x²-x=91

           

x₁=-6.5, x₂=7

Pachacha [2.7K]3 years ago
7 0

Answer:

Length = 13

Width = 7

Step-by-step explanation:

Given:

length = 2(width) - 1

Area of a Rectangle = lω = 91 cm²

Calculation:

Area of a Rectangle = lω = 91 cm²

(2ω-1)ω = 91

= 2ω²- ω - 91 = 0

=(2ω+13)(ω-7)=0

ω = -6.5       ω=7

length = 2(width) - 1

l=2(7) - 1

l = 13

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The diameter of a circle is 14 in. Find its area in terms of <br> π<br> π.
maksim [4K]

Answer:

49π in²

Step-by-step explanation:

Step 1: Find the radius.

  • To find radius given diameter, just divide the diameter by 2: \frac{14}{2}
  • 14/2 = 7, so the radius is 7.

Step 2: Apply area of circle formula.

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  • Now, plug in the value of r: π(11)².

Step 3: Simplify.

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4 0
2 years ago
I really need the answers please help asap
DanielleElmas [232]

Step-by-step explanation:

In a straight line theres 180 degrees and where x is you can tell its an X lines the opposites will be the same.

First you need to work out the triangles 180-122=58 and a triangle is 180 degrees so

58+40=98 180-98=82°

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180-82=98, 43+98=141

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2 years ago
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