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
stira [4]
2 years ago
5

Find the dimensions of a rectangle with perimeter 76 m whose area is as large as possible. m (smaller value) m (larger value)

Mathematics
1 answer:
Sladkaya [172]2 years ago
5 0

Answer:

19 m

Step-by-step explanation:

Perimeter = 2(length + width) ; P = 2(l+w) - - (1)

Area = Length * width ; A = l*w - - - (2)

76 = 2(l+w)

76/2 = l+w

l+w = 38

l = 38 - w

Put l = 38 - w in (1)

A = (38-w)*w

A = 38w - w²

At maximum point:

dA/dw = 0

dA/dw = 38 - 2w

38 - 2w = 0

38 = 2w

w = 38/2

w = 19

You might be interested in
2n +5)=2<br> Help me please
Kobotan [32]

Answer:

-1.5

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
During a visit to a primary care physician's office, the probability of having neither lab work nor referral to a specialist is
Verdich [7]

Answer:

Mommy

Step-by-step explanation:

mommy mommy mommy mommy mommy

6 0
2 years ago
Read 2 more answers
Can someone please help me with this problem!
Anna71 [15]

Answer:

11 yards

Step-by-step explanation:

The volume of a cone formula is:

V=\frac{1}{3}\pi r^2 h

Where V is the volume,

r is the radius (half of diameter)

h is the height

Given,

h = 15

V = 475.17

We find the radius (r) first by substituting given values:

V=\frac{1}{3}\pi r^2 h\\475.17=\frac{1}{3}\pi r^2 (15)\\475.17=5\pi r^2\\r^2=30.25\\r=5.5

The radius (r) is 5.5 yards

We need the diameter, which is DOUBLE THE RADIUS, so diameter would be:

Diameter = 5.5 * 2 = 11 yards

8 0
2 years ago
Travis wants to solve a quadratic equation. Since his equation cannot be factored, Travis has to graph the equation and approxim
SOVA2 [1]

Answer:

The correct answer is B.

Step-by-step explanation:

In order to find this, calculate out the discriminant for each of the following equations. If the discriminant is a perfect square, then it can be factored.

Discriminant = b^2 - 4ac

The only of the equations that does not yield a perfect square is B. The work for it is done below for you.

Discriminant = b^2 - 4ac

Discriminant = 7^2 - 4(2)(-5)

Discriminant = 49 + 40

Discriminant = 89

Since 89 is not a perfect square, we cannot factor this.

6 0
2 years ago
Read 2 more answers
M∠A = 75 + 5x
Firlakuza [10]

Answer:

See below

Step-by-step explanation:

For a parallelogram m < A = m < C so:-

75 + 5x = 87 + 3x

2x = 12

x = 6  

and m< A = 75 + 30 = 105

and m < C = 87 + 18 = 105

Now if the other 2 angles are  = 75 degrees( that is the same side angles add up to 180 degrees) we have proved that it is a parallelogram.

m < B = m < D

111 - 6x = 39 + 6x

-12x = -72

x = 6

m < B = 111 - 36 = 75 and m < D = 39 + 36 = 75

So this has been proved.

6 0
3 years ago
Other questions:
  • Please help please please please please
    5·1 answer
  • Find a quadratic equation with integer coefficient ,if one of the roots is 7-root3
    15·1 answer
  • Maribel surveyed 55 people to find out their favorite types of music. The results are shown in the bar graph. Based on the infor
    11·1 answer
  • Round 481 to the nearest<br> tens place?
    8·1 answer
  • Find the length of a diagonal of a square with sides 10in. long
    14·2 answers
  • What is the period of the sinusoidal function?
    15·2 answers
  • The temperature is -2 deg C . If the temperature rises by 15 deg C what is the new temperature ?
    13·2 answers
  • Given: g(x) = 4 - (x + 3)^2<br>find the x-intercept​
    14·2 answers
  • I need help with 1+1 First answer gets Brainliest<br><br> (Please explain how you got the answer)
    12·2 answers
  • Reduce the fraction to lowest terms 16/24
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!