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
charle [14.2K]
3 years ago
6

A farmer needs to enclose three sides of a field with a fence (the fourth side is a river). The farmer has 49 yards of fence and

wants the field to have an area of 294 sq-yards. What should the dimensions of the field be? (For the purpose of this problem, the width will be the smaller dimension (needing two sides); the length with be the longer dimension (needing one side). Additionally, the length should be as long as possible.)
Mathematics
1 answer:
Setler79 [48]3 years ago
8 0

Answer:

The length of the field = 24.5 yards

The width of the field = 12 yards.

Step-by-step explanation:

If "w" is the width, then the length is 49 - 2w.

The area of the rectangle field = length × width

= w(49 - 2w)

Area = 49w - 2w^2

This a quadratic equation, the vertex of x coordinate is w

w = \frac{-b}{2a}

Here a = -2 and b = 49

w = \frac{-49}{2(-2)} = \frac{-49}{-4} = 12.25.

So width of the field is 12.25 yards.

The length of the filed = 49 - 2(12.25) = 24.5

Area = 12.25 × 24.5 = 300.125 square yards.

The field has an area of 294.

Therefore, the length must be 24.5 yards and width must be 12 yards.

24.5 × 12 =294 square yards.

Therefore, the length of the field = 24.5 yards

the width of the field = 12 yards.

You might be interested in
There are 96 strawberries in a basket. Each of the 12 children received an equal number of strawberries. Which equation gives s,
MAXImum [283]

Answer:

B

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
The only way to sober up after drinking is
anzhelika [568]
<span>What is the only way to sober up?<span>stuff like cold showers, fresh air, or chewing gum works but time is the only</span></span>
5 0
3 years ago
The graph of the function f(x) = –(x + 6)(x + 2) is shown below.
schepotkina [342]

Answer:

a. The function is increasing for all real values of x where  x < –4.

Step-by-step explanation:

Let me help you, I have answered this question once in Brainly as well

Given the factored form of the function:

f(x) = -(x + 6)(x+2)

<=> f(x) = -x^{2} - 8x -12

We will convert to vertex form

f(x) = -(x+4)^{2} + 4

Let analyse other possible answers:

<u>a. The function is increasing for all real values of x where  x < –4.</u>

True, because  the parameter a = - 1 so the graph open down all over its domain

<u>b. The function is increasing for all real values of x where  –6 < x < –2.</u>

Wrong, the function decrease in the interval from –4.< x < -2

<u>c. The function is decreasing for all real values of x where  x < –6 and where x > –2.</u>

Wrong, the function increase in the interval from -6 < x < -4

<u>d. The function is decreasing for all real values of x where  x < –4.</u>

Wrong,  The function is increasing  for all real values of x where  x < –4.

7 0
3 years ago
Read 2 more answers
What is 851.64 in expanded notation?
navik [9.2K]
8 x 100 = 800
5 x 10= 50
1x1=    1
6 x 0.10= 0.6
4 x 0.01 = 0.04
              = 851.64
7 0
3 years ago
Lupe bought 8 pounds of pretzels at a local wholesaler for $18. Her friend Charles bought 6 pounds of pretzels at the supermarke
Novay_Z [31]

Answer:

20

Step-by-step explanation:

Charle would have spent that much because one pound is 2.50

15 divided by 6=2.50

2.50x8=20

3 0
3 years ago
Read 2 more answers
Other questions:
  • My number has 8 tens .the digit in the ones place is greater than the digit in the teens place
    12·1 answer
  • What is the missing constant term in the perfect square that starts with x square minus 12 x
    14·1 answer
  • 1) Give an example of a math formula.
    6·1 answer
  • Use the distance formula to find the distance between the two points
    5·1 answer
  • If the sides are 3 in,5 in,3.5 in<br> and the angles are 44',100',36' is it a isosceles or scalene?
    12·1 answer
  • What is the sum of the 18 and 42 as a product of their GCF.
    6·1 answer
  • 18. What is the value of j in the equation √ j + √ j + 14 = 3√ j + 10? A. 16 B. √ 2 C. 4 D. 2
    10·1 answer
  • What is the greatest common factor of 48, 27, and 36
    6·2 answers
  • Identify the equations of ellipses whose major axis lengths are twice their minor axis lengths.
    8·1 answer
  • X square root 7x + 10<br> factor the equation<br><br> algerbra 2
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!