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
lora16 [44]
3 years ago
13

A rectangular parking lot has a perimeter of 820 ft. The area of the parking lot measure SL 42,000 ft

Mathematics
1 answer:
horsena [70]3 years ago
6 0

Answer:

a= 200

b = 210

Step-by-step explanation:

My assumption is, we have to find the length of sides of rectangle

Given

perimeter = 2a + 2b = 820 ft (i) (here a is smaller side and b is larger side)

area = a*b = 42,000 ft^2 (ii)

from eq (1)

2a + 2b = 820

=> 2(a+b) = 820

=> a+b = 820/2

=> a + b = 410

=> a = 410-b   (iii)

putting the value of a in eq(ii), we get

(410-b) *b = 42,000

410b - b^2 = 42,000

0 = b^2 - 410b + 42000

b^2 - 410b + 42000 = 0

b^2- 200b- 210b + 42000 = 0

b(b-200)-210(b-200) = 0

(b-200)(b-210) = 0

or

b= 210 and b = 200

if b is larger side than b =210

By putting value of b in eq(iii),

a = 410 -210 = 200

 

You might be interested in
What is 2 thirds plus 3 sevenths
Zepler [3.9K]
23 over 21 is the right answer

23
----
21
6 0
3 years ago
Read 2 more answers
Please help me with this math question!
Alenkinab [10]
The bases are both 2, so we would subtract the exponents. This is because the rule is

(a^b)/(a^c) = a^(b-c)

In this case,
a = 2
b = 3/4
c = 1/2

So this means
b - c = (3/4) - (1/2) = (3/4) - (2/4) = 1/4

After subtracting the exponents, the final exponent is 1/4

So the expression simplifies to 2^(1/4) which is the same as \sqrt[4]{2} (fourth root of 2)
4 0
3 years ago
In a park, a sidewalk is built around the edge of a circular garden as shown. The sidewalk is 5 feet wide, and the garden measur
posledela

Answer:

63 feet.

Step-by-step explanation:

The total diameter of the circular garden is given by 5ft+ 10 ft + 5 ft= 20 feet

As the circumference of the circle = 2πr where r = radius obtained by dividing the diameter by 2. Here the diameter = 20 feet and r= d/2 = 20/2 = 10 feet

Putting the values in the circumference formula

Then C= 2(22/7) (10)= 62.85 feet

Rounding gives almost 63 feet .

4 0
3 years ago
Anyone down to help? 12pts for PRE-ALGEBRA question Use the information in the table for 2–4.
Anni [7]

Answer:

See attached image

Step-by-step explanation:

If the number of blueberries is the x value, and number of calories is the y value, then we can create the ordered pairs (5,4) (10,8) (15,12) based on the data in the table.

Plotting these on the graph is simple - just go to the x value then the y value and plot where these lines meet.

The slope of a line is always the rise over run.

Every time our x increases by 5, our y increases by 4. The rise is 4, and run is 5, so the slope is \frac{4}{5}

Hope this helped!

8 0
3 years ago
Find C on AB such that the ratio of AC to CB is 1:2.<br>A(-3,-3) B(4,5)
Sati [7]
I THINK ITS B or A BUT I AM NOT SURE
3 0
4 years ago
Other questions:
  • A pattern for 1 uniform uses 12 yards of material. Boleslaw wants to know how many yards are needed for 8 uniforms. Chantal want
    13·2 answers
  • Which of the following represents the graph of f(x)=1/2^x+2
    11·1 answer
  • Which of the following represents the set "all values of x greater than or equal to −1 and less than 2" in set builder notation?
    8·2 answers
  • Which set of sides will make a triangle
    9·1 answer
  • Isosceles triangle measures 120 degrees which other angles could be in that isosceles triangle
    13·1 answer
  • Identify the domain and range for (1,4) (2,5) (0,6) (1,7) (2,8)
    14·1 answer
  • Solve this multiplication problem. Show your work 72 x 139
    15·1 answer
  • 201.3 Divide by 1 .83
    15·2 answers
  • Plz help I’m getting timed
    6·2 answers
  • 4. Solve the system of equations.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!