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
Oksana_A [137]
3 years ago
15

The length of a rectangle is 2 feet less than twice the width. The area of the rectangle is 180 feet squared. Find the length an

d width of the rectangle.
Mathematics
1 answer:
Ksenya-84 [330]3 years ago
3 0

Answer:

Width=10

Length=18

Step-by-step explanation:

The length is 2 feet less then twice the width

Let the width be x.

Then the length is 2x -2 based on the given information. Use this to make an equation since it is known that the area is 180feet squared.

x(2x-2)=180

2x^2 - 2x - 180 = 0

2( x^2 - x - 90) = 0

We now have a factorable quadratic.

2(x+9)(x-10)=0

So by zero product property, x=-9, x=10 Since a measure cannot be negative, -9 is an extraneous solution.

So x=10

Then the width is 10 and the length is 18

Hope this helps! Let me know if it is correct!

You might be interested in
Which polynomial is written in descending order?
Anarel [89]

The ascending or descending order of a polynomial is determined by the increasing or decreasing power of variable “x” respectively.

<span>The question is to find about the polynomial in descending order, so in this case, the 3rd option is correct, i.e. 4x^2 – 3x + 9 or 4x^2 – 3x^1 +9x^0. The power of “x” decreasing from 2 to 1 and then finally to 0.</span>

4 0
3 years ago
Helppppppppppppppppppppppppppp
OverLord2011 [107]
The domain of the function f(x) is where the area under the square root (aka the radicand) is positive or zero. We have to write that the radicand is greater than or equal to zero, so 

\dfrac{1}{2}x-10 \geq 0.

C
6 0
3 years ago
Please help someone​
Yuliya22 [10]

Answer:

Yes

Step-by-step explanation:

90% of 50 is 40 so if more than 40 left before it hit 60 seconds then the 90% has been achieved.

4 0
3 years ago
What two numbers multiply to 50 but add up to 5
vichka [17]
I assume the question is multiply to -50 and add to +5... If so, the answer is +10 and -5. 10 (-5) = -50 .... and 10 + (-5) = +5
3 0
3 years ago
Read 2 more answers
Solid metal support poles in the form of right cylinders are made out of metal with a density of 7.3 g/cm^3 3 . This metal can b
sattari [20]

The cost of the metals from the calculations performed is $ 402421.

<h3>What is density?</h3>

Density can be explained as a quantity having  mass per unit volume and this can be calculated as:

Mass of the metal = ?

Density of the metal =  7.3 g/cm^3

height of the metal = 610 cm

radius of the metal = 8.7 cm

Volume of a cylinder  can be calculated by using the formular below:

(\pi r^2h ) And this can be used by inserting the given values which is

= 3.142 * (8.7)^2 * 610 cm = 145068.97cm^3

Then we can calculate the mass as :

Mass = (density * volume)

= (7.3 g/cm3 * 145068cm^3)\\\\=1059003kg

=Since the cost is $0.38 per kilogram, then 3657 Kg costs

;( 1059003kg * $0.38)

= $ 402421

Learn more about density at: brainly.com/question/1578538

#SPJ1

6 0
2 years ago
Other questions:
  • Can someone help my do step by step 579 divided by 3
    11·1 answer
  • There are eight students in a class. Only one of them has passed Exam P/1 and only one of them has passed Exam FM/2. No student
    14·1 answer
  • Buchtal, a manufacturer of ceramic tiles, reports on average 2.3 job-related accidents per year. Accident categories include tri
    15·1 answer
  • There are 33.8 fluid ounces in a liter. There are 128 fluid ounces in a gallon. How many liters per gallon ( Hint: find the unit
    8·2 answers
  • HELP PLEASE, WILL MARK BRANLIEST!!!
    9·1 answer
  • A) Find all the square numbers that are greater than 10 but less than 40.​
    10·1 answer
  • Please answer this problem for me​
    5·2 answers
  • Which expression is equal to 6 x (3 + 8)?
    5·1 answer
  • 60 points!!! please help asap!!!
    10·1 answer
  • True or False? A number is either positive or negative
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!