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
adoni [48]
3 years ago
9

A rectangular garden is 20 ft longer than it is wide. Its area is 800 ft 2 . What are its dimensions?

Mathematics
1 answer:
EleoNora [17]3 years ago
6 0
Our equation for the area of a rectangle is l x w = A (length times width equals area)
We know that l=w+20 so we can plug this into our equation.
It is now, (w+20) x w =800
We can then solve for w
w^2 +20w =800
We can subtract 800 on each side to get
w^2 +20w - 800 =0
We then factor to get
(w-20)(w+40)=0
This gives us w =20 and w = -40
Width cannot be negative so our width will be 20 feet
Since our length is 20 more than this, then our length will be 40feet
So the dimensions of the rectangle are 20 ft wide by 40 ft long
You might be interested in
HELP ME PLEASE!!!
Doss [256]
The 5 values needed are:
Min, Q1, Q2, Q3, Max
Order the data:
2, 3, 4, 9, 11, 12, 17, 18
Min= 2, Q1= 3.5, Q2=10, Q3= 14.5, Max=18
8 0
4 years ago
What is the equation of a line with a slope of -2 that passes through the point (-2,12)?
slavikrds [6]

Answer:

y=-2x + 8 which is the required equation

Which is option C

Step-by-step explanation:

Given:

Slope = m = -2

Given points are ( -2,12)

Which is

x = -2 and y =12

TO find:

Equation of line passing through these points = ?

Solution:

The point slope form of a line is

y = mx + c

Here we don't know the value of c

To find it

Putting y = 12 , x= -2 and y = -2 in the given equation

y = mx + c

Putting values it becomes

12 = (-2)*(-2) + c

12 = 4 + c

Subtracting 4 from both sides

12-4 = 4 -4 + c

8 = c

Now we have

m = -2 and c= 8

So equation of a line is given by

y = mx + c

Putting value of m and c

y = -2*x + 8

y=-2x + 8 which is the required equation


7 0
3 years ago
Read 2 more answers
What is 1/10 of 700?
vlabodo [156]
1/10 of 700 would be 700 would be 70 because 70 x 10 = 100 hope this helped
6 0
3 years ago
Read 2 more answers
7-x=21. help ????????????
Dmitriy789 [7]
X=-14
do you want an explanation <span />
6 0
3 years ago
Read 2 more answers
Factor the expression using the GCF. 18-12
rodikova [14]

Answer:

6(3-2)

Step-by-step explanation:

Find the GCF of both numbers. The GCF is 6. Write it as 6(   -   )

Then, divide both numbers by 6. 18 divided by 6 is 3 and 12 divided by 6 is 2. Fill in the blanks with 3 and 2. A=6(3-2)

7 0
3 years ago
Other questions:
  • 120t-0.4t^4+1000=0<br>How can i solve this?
    5·1 answer
  • Write a linear function f with the given values f(0) = -5 f(4) = -3
    8·1 answer
  • (sin teta + sec teta)^ + (cos teta+ cosec teta )^ = (1 + sec x cosec)^
    7·1 answer
  • Simple interst for $750 at 6.5 interest for 3 years
    15·2 answers
  • Factor 12y^2 + 5y - 2 completely.
    8·2 answers
  • What is the equation of a line that passes through 0,5 and 4,8
    5·1 answer
  • A group of students decided to study the sinusoidal nature of tides. The depth of the water level was recorded at various times.
    5·1 answer
  • 19. The formula P = a + b + cgives the perimeter P of a triangle with side
    9·1 answer
  • 4. What steps can be taken to find the product of 0.92 and 1,000?
    13·1 answer
  • prove “if two angles of one triangle are congruent to two angles of a second triangle, the the third angles of the triangles are
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!