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
Cerrena [4.2K]
2 years ago
6

The length of a rectangle is 6 inches more than its width. Its area is 91 square inches. The length is .

Mathematics
1 answer:
Vika [28.1K]2 years ago
8 0

Answer:

13 in

Step-by-step explanation:

let w be width then length is w + 6

the area (A) of a rectangle is calculated as

A = length × width , then

A = w(w + 6) = 91 , that is

w² + 6w = 91 ( subtract 91 from both sides )

w² + 6w - 91 = 0 ← in standard quadratic form

(w + 13)(w - 7) = 0 ← in factored form

equate each factor to zero and solve for w

w + 13 = 0 ⇒ w = - 13

w - 7 = 0 ⇒ w = 7

however, w > 0 then w = 7

and length = w + 6 = 7 + 6 = 13 in

You might be interested in
A table<br> cloth is 82 inches<br> long. What is its length in<br> feet and inches?
Ratling [72]
The answer is 6 feet 10 inches
4 0
2 years ago
Write the number 10 as a fraction
liq [111]

Answer:10/1

Step-by-step explanation:

Any number can become a fraction by adding a number underneath

6 0
3 years ago
Let s be the annual sales​ (in millions) for an electronic device. The value of s is 13.9 for 2009. What does sequals13.9 mean i
jok3333 [9.3K]
S would be the annual sales of the electronic device. In this case, that number is in the millions.

Therefore, our 13.9 becomes 13.9 millions.
Or written out, it would be: 13,900,000
4 0
3 years ago
d(t)=750t/(t+12) where t is the age in years and d is the dosage. what is an expression for the rate of change of a child's dosa
Maksim231197 [3]
This just wants the derivative which you can solve for.
You can do this using a negative expononet or using ...the rational rule forget its name*.... you shoudl get 9000/(t+12)^2


*Quotient rule
3 0
3 years ago
Plz help me will give brainliest
rosijanka [135]

Answer:

10

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • What is the value of 4x2 + 5x when x= 1?
    9·2 answers
  • Explain how to find the exact value of cot 5pi/3 , including quadrant location.
    12·1 answer
  • ANSWER THIS FOR 11 POINTS, what are the slope and y intercept of the function?
    14·1 answer
  • What is 4,783 divided by 205,669???
    5·2 answers
  • Pamela's age is two times Jiri's age. The sum of their ages is 84. What is Jiri's age?
    15·1 answer
  • About 130000 high school students took the AP exam in 2010 .the free response section of the exam consisted of five open ended p
    12·1 answer
  • Find the value of x and y pls help
    13·2 answers
  • Find the perimeter of the polygon.
    14·1 answer
  • I need help with this slope question grade 9
    14·2 answers
  • 2 1/4 x 3 2/5<br> show all your work
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!