1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
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

You might be interested in
Which two rational numbers does √14 lie between?
Fiesta28 [93]

First, let's find what √14 equals.

√14 ≈ 3.74

Now, we can solve for all the answer choices.

Option A:

19/6 = 3.1666...

22/7 = 3.1428...

Option B:

Doesn't need to be solved.

3.17

3.71

Option C:

√4 = 2

√9 = 3

Option D:

Doesn't need to be solved.

3.70

3.75

The only option that contains √14 between it, is Option D.

Hope This Helped! Good Luck!

7 0
3 years ago
Read 2 more answers
2V2 km<br> 2 km<br> X<br> A) 2V5 km<br> C) 2 km<br> B) 2V3 km<br> D) 4 km<br> HELP PLEASEE
Rasek [7]

Answer:

x=2\sqrt3\ km

Step-by-step explanation:

Given that,

The base of a triangle = 2 km

The perpendicular height of the triangle = 2\sqrt{2} \ km

We need to find the value of x. It is the Hypotenuse of the triangle. It can be solved as :

x=\sqrt{(2\sqrt{2})^2+2^2 } \\\\=2\sqrt{2+1 } \\\\=2\sqrt3\ km

So, the value of x is equal to 2\sqrt3\ km.

3 0
3 years ago
Help picture attached
Vilka [71]
I would say c or d. but since its multiple choice, its ok to guess sometimes.
6 0
3 years ago
Write the equation of the line with a slope of 1/4 that passes through the point (8, -3).
pantera1 [17]

Answer:

-7

Step-by-step explanation:

-8 = (-1/4)(4) + b

-8 = -1 + b

b = -7

8 0
3 years ago
Plz help me answer this plz!!!
musickatia [10]

Answer:

w=5

Step-by-step explanation:

two negatives is a positive

7 0
3 years ago
Other questions:
  • (10 points) Please help out! I'm trying to pass this important test to graduate! :)
    9·2 answers
  • Image is the question
    8·1 answer
  • Six years ago, Robert’s age was __________. A = Robert’s present age Which expression models this situation? A) 6A B) A + 6 C) A
    14·1 answer
  • If x square is equal to x then what is the value of x​
    5·1 answer
  • An airplane is traveling in the direction 20 degrees west of north at 700 ​km/hr. Find the component form of the velocity of the
    10·1 answer
  • Write an algebraic expression to represent the total number of silver dollar fish that could be in a 24 gallon tank. D=number of
    6·1 answer
  • In the diagram, point O is the center of the circle and m∠ADB = 43°. If m∠AOB = m∠BOC, what is m∠BDC?
    14·2 answers
  • 10 = 2j – 4 <br> what does j =
    5·2 answers
  • Let f(t)=6−2t2. Evaluate f(t+1).
    13·1 answer
  • Is it bad for my dad to grab me by the neck and slap me?​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!