An open box is to be made out of a 6-inch by 18-inch piece of cardboard by cutting out squares of equal size from the four corners and bending up the sides. find the dimensions of the resulting box that has the largest volume.
dimensions of the bottom of the box:
height of the box:

Answers

Answer 1

An open box is to be made out of a 6-inch by 14-inch piece of cardboard by cutting out squares of equal size from the four corners and bending up the sides. Find the dimensions of the resulting box that has the largest volume.

Dimensions of the bottom of the box: L x W

Height of the box:

SOLUTION

Diagram

Cardboard with x2 area cutouts...

··················14 - 2x

···x··¦¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¦···x··

¦——¦·······························¦——¦

¦·············································¦

¦·············································¦ 6 - 2x

¦·············································¦

¦——¦·······························¦——¦

···x··¦___________________¦··x···

Volume = l·w·h

After cutouts:

l = 14 - 2x

w = 6 - 2x

h = x

V = (14 - 2x)(6 - 2x)(x) in3

V = 4x3 - 40x2 + 84x in3

To maximize the volume, take the derivative of V with respect to x, set it equal to zero, and solve for x:

dV/dx = 0 = 12x2 - 80x + 24

x2 - (20/3)x + 7 = 0

x = (10 ± √37)/3 in

Since (6 - 2x) yields a negative number for x = (10 + √37)/3 we use only x = (10 - √37)/3

Thus, the dimensions are:

l = 14 - 2x = 11.39 in

w = 6 - 2x = 3.39 in

h = x = 1.31 in

Base = l·w = 38.59 in2

Volume = 50.39 in3


Related Questions

Using the numbers 1 2 3 4 5 6 7 8 place each number once in the appropriate box so that the final answer is an ancient approximation of Pi

Answers

The approximated value of π using the integer digits 1 2 3 4 5 6 7 8 is is 3.142857

How to approximate the value of π?

The integers are given as:

1 2 3 4 5 6 7 8

The value of π is:

π = 22/7

Evaluate the quotient

π = 3.14285714286

From the question, the digits 1 to 8 have to appear just once.

So, we approximate the number up to the point where any of the given digits has more than one occurrence.

So, we have:

π = 3.142857

Hence, the approximated value of π is 3.142857

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10 Find the standard equation of the circle having the given center and radius.

Answers

the standard equation of the circle having the given center and radius is [tex](x-9)^2+(y-2)^2=\frac{9}{25}[/tex].

If m<1 = 40 degrees , what is m<2 m<3 and m<5

Answers

Answer & step-by-step explanation:

Corresponding Angles:   m∠1 = m∠5;  m∠2 = m∠6;

                                          m∠3 = m∠7;  m∠4 = m∠8

Alternate Interior Angles: m∠3 = m∠6;  m∠4 = m∠5

Alternate Exterior Angles: m∠1 = m∠8;  m∠2 = m∠7

As you can see on the picture below:

HELPPPPPPP! DUE TOMORROW

Answers

Answer:

Angle 1 = 63.3

Angle 2 = 37.3

Angle 3 = 63.3

Angle 4 = 142.7

Step-by-step explanation:

When a line intersects two parallel lines the interior angles are equal. So angle 2 = 37.3

Angle 3 = 180 - (79.4 + 37.3) = 63.3 since the sum of the angles on a straight line must be 180

Ange 1 = Angle 3 = 63.3

Angle 4 = 180-37.3 = 142.7

5b2 square value of b is 4

Answers

Answer:

80

Step-by-step explanation:

5b^2

b equals to 4

=5(4^2)

=5(16)

=80

Answer: 80

Step-by-Step Explanation:

= 5b^2; (b = 4)

On substituting value of ‘b’,
= 5 * (4^2)
= 5 * (4 * 4)
= 5 * (16)
= 80

Express tan C as a fraction in simplest terms.

SOMEONE PLEASE HELP ME ILL GIVE YOU BRAINLIST ANSWER

Answers

Answer:

[tex]\sf \tan(C)=\dfrac{3}{4}[/tex]

Step-by-step explanation:

First, find the missing side length (DE) by using Pythagoras' Theorem:

a² + b² = c²  

(where a and b are the legs, and c is the hypotenuse, of a right triangle)

⇒ 36² + DE² = 45²  

⇒ DE² = 45² - 36²

⇒ DE² = 729

⇒ DE = √729

⇒ DE = 27

Tan trig ratio

[tex]\sf \tan(\theta)=\dfrac{O}{A}[/tex]

where:

[tex]\theta[/tex] is the angleO is the side opposite the angleA is the side adjacent the angle

Given:

[tex]\theta[/tex] = CO = DE = 27A = 36

Substituting the given values into the formula:

[tex]\implies \sf \tan(C)=\dfrac{27}{36}=\dfrac{3}{4}[/tex]

Answer:

3/4

Step-by-step explanation:

Finding the missing side by applying the Pythagorean Theorem :

a² + b² = c²a² = c² - b²a² = (45)² - (36)²a² = 2025 - 1296a² = 729a = 27

Finding tan C :

opposing side of ∠C / adjacent side of ∠CDE / CD27/363/4

Simplify: √(x^2-6x+9) if x<3

Answers

3-x i believe because of the parameter that x is less than 3

calculate the magnitude of the angle ABC from the breeze data

Answers

Answer:

∠ ABC = 67°

Step-by-step explanation:

the angle between a tangent and a chord is equal to the angle in the opposite segment, that is

∠ ABC = ∠EAC = 67°

A store owner puts in an order for product x and product y for a total of 4,000 units. it costs $0.10 per item to ship of product x and $0.04 per item to ship product y. if the total shipping cost is $352, which system of equations can be used to determine how much of product x and product y the store owner bought? startlayout enlarged left-brace 1st row x y = 4,000 2nd row 10 x 4 y = 352 endlayout startlayout enlarged left-brace 1st row 10 x 4 y = 4,000 2nd row x y = 352 endlayout startlayout enlarged left-brace 1st row x y = 4,000 2ndrow 0.1 x 0.04 y = 352 endlayout startlayout enlarged left-brace 1st row 0.1 x 0.04 y = 4,000 2nd row x y = 352 endlayout

Answers

The system of equations can be used to determine how much of product x and product y the store owner bought is x + y = 4,000

0.10x + 0.04y = 352

Simultaneous equation

product xProduct yTotal units of x and y = 4,000 unitsCost of shipping each product x = $0.10Cost of shipping each product y = $0.04Total cost of shipping = $352

The equation:

x + y = 4,000

0.10x + 0.04y = 352

Therefore, the system of equations can be used to determine how much of product x and product y the store owner bought is x + y = 4,000

0.10x + 0.04y = 352

Learn more about simultaneous equation:

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Answer:

C

Step-by-step explanation:

Find the slope of the line that goes through the given points! A(2,8) and B(4,6)
(WHOEVER ANSWERS FIRST AND CORRECTLY WILL BE BRAINLIEST!!!)

Answers

       [tex]\rule{50}{1}\large\blue\textsf{\textbf{\underline{Question:-}}}\rule{50}{1}[/tex]

       Find the slope of the line that goes through (2, 8) and (4, 6)

     [tex]\rule{50}{1}\large\blue\textsf{\textbf{\underline{Answer and how to solve:-}}}\rule{50}{1}[/tex]

The slope formula will help us find the slope, Here it is:-

[tex]\Large\text{$\displaystyle\frac{y_2-y_1}{x_2-x_1}$}[/tex]

Now, replace y2 with 6, y1 with 8, x2 with 4, and x1 with 2:-

[tex]\Large\text{$\displaystyle\frac{6-8}{4-2}$}[/tex]

Simplifying,

[tex]\Large\text{$\displaystyle\frac{-2}{2}$}[/tex]

Simplifying further,

[tex]\hookrightarrow\underline{\boxed{\sf{Slope=-1}}}[/tex]

Good luck with your studies.

#TogetherWeGoFar

[tex]\rule{300}{1}[/tex]

Answer:

[tex]\sf \boxed{-1} \ \ is \ the \ slope[/tex]

Explanation:

[tex]\sf slope: \dfrac{y_2 - y_1}{x_2- x_1} \ \ where \ (x_1 , \ y_1), ( x_2 , \ y_2) \ are \ points[/tex]

Here given points: A(2,8) and B(4,6)

Find slope (m):

[tex]\sf \rightarrow \dfrac{6-8}{4-2}[/tex]

simplify

[tex]\sf \rightarrow -1[/tex]

Additional

To find equation:

[tex]\sf y-y_1 = m(x-x_1)[/tex]

[tex]\rightarrow y-8 = -1(x-2)[/tex]

[tex]\rightarrow y = -x+2+8[/tex]

[tex]\rightarrow y = -x+10[/tex]

complete an isosceles triangle that has
the x-axis as a line of symmetry.

Answers

Answer:

See below

Step-by-step explanation:

Since the x-axis is the line of symmetry, the missing vertex is the reflection of the given vertex over the line of symmetry.

The given vertex is (- 2, 4)Its reflection is (- 2, -4), only y-coordinate changes to opposite

Connect these points with the vertex on the x-axis to complete the triangle.

See the attachment

please awnser the equation below

Answers

Answer:

the answer for all of this question should be

C=( -10, -2)

D=(0, -2)

E=(0,8)

F=(-10,8)

so remember the quadruants and remember if the x is negative or positive and if the y is either negative or positive so hopefully those are the correct one and if not tell me whats wrong so i can edit it to make it better.

Step-by-step explanation:

What is the most logical first step in solving the equation x2 + 6x +9 = 10?
A. Subtract 9 from both sides of the equation
о
B. Take the square root of both sides of the equation
C. Subtract 10 from both sides of the equation
O
D. Factor the left side of the equation

Answers

Answer:

D

Step-by-step explanation:

The logical step is to factorize the left side of the equation, which becomes:

(x + 3)² = 10

Then, you can take the square root on both sides.

x + 3 = ±√10x = ±√10 - 3

Not asked, but good to understand the procedure regardless.

[tex]\huge\color{yellow}\underline \colorbox{violet} {\color{red}{QUESTION}}[/tex]​

Answers

Answer:

21.27 cubic meters

22.30 cubic meters

Step-by-step explanation:

We find volume by multiplying height, width, and length.

21.

3x3x3=27 cubic meters

22.

5x2x3=30 cubic meters

Answer:

    21. 27 cubic meters

   22. 30 cubic meters

Step-by-step explanation:

Question 21

Volume = length × width × heightVolume = 3 × 3 × 3Volume = 27 cubic meters

Question 22

Volume = 5 × 2 × 3Volume = 30 cubic meters

Solve for x in -
6(3x-5)-7x=25

Answers

Step-by-step explanation:

6 ( 3x - 5 ) - 7x = 25..

18x - 30 - 7x = 25

18x - 7x = 25 + 30

11x = 55

x = 55 / 11

x = 5

[tex]...[/tex]

x=5

Step-by-step explanation:

6(3x-5)-7x=25

18x-30-7x=25

11x-30=25

x=5

The price of a train ticket from Kansas City to Lexington is normally $110.00. However, the train company is offering a special 25% discount to children under 16. What is the sale price of a ticket from Kansas City to Lexington for someone under the age of 16?

Answers

Answer:

$82.50

Step-by-step explanation:

25% of $110.00 is $27.5, which means 110.0 - 27.5 is equal to = 82.50.

Answer:82.50

Step-by-step explanation:

What are “holes” in algebra 2?

Answers

Answer:

Step-by-step explanation:

A hole exists on the graph of a rational function at any input value that causes both the numerator and denominator of the function to be equal to zero.

Divide 15/18 by 6 any answers??

Answers

15/18 ÷ 6
= 15/16 ÷ 6/1
Changing the sign(÷) to multiplication (×), you get the reciprocal of 6/1
= 15/16 × 1/6
= 15/96
= 5/32
= 0.15625

Answer:

[tex] \frac{5}{36} [/tex]

Step-by-step explanation:

[tex] \frac{15}{18} \div 6 \\ = \frac{15}{18} \times \frac{1}{6} = \frac{5}{18\times 2} = \frac{5}{36} [/tex]

A bag contains 5 blue marbles and 3 yellow marbles. You randomly select two marbles from the bag. What is the probability that both marbles are blue when you replace each marble before selecting the next marble? Write your answer as a decimal rounded to three decimal places.

Answers

Answer:

0.625

Step-by-step explanation:

5/8 because there are 5 blue marbles and there are 3 yellow marbles. If you add them it equals 8.

The probability is 5/8.

If you do 5 divided by 8 it gives you 0.625.

Honestly i don't know what you mean by "rounded to three decimal places."

Sorry if it's not really healpful.

Vehicle final sale price is $25,000 at 5% interest and offers financing up to 60 months. what is the monthly car payments?

Answers

Answer:

$ 471.78

Step-by-step explanation:

This describes an 'ordinary annuity' ====>   FORMULA:

PV= C [  1-(1+i)^-n / i ]    Looking for C    i = .05/12   n =60   PV = 25000

 plug in the numbers and calculate   C = 471.78

Segment AB has point A located at (6, 5). If the distance from A to B is 5 units, which of the following could be used to calculate the coordinates for point B? (1 point)

Answers

The equation that can be determined by the coordinates for point B will be 25 = (x - 6)² + (y - 5)².

What is coordinate geometry?

The study of geometry using points in space is known as coordinate geometry. This may be used to discover the length between the endpoints, the dividing line's m:n ratio, the line's mid-point, and so on.

Segment AB has point A located at (6, 5). If the distance from A to B is 5 units.

Then the equation that can be determined by the coordinates for point B will be

[tex]\rm 5 = \sqrt{(x-6)^2 +(y-5)^2}[/tex]

This can be written as

25 = (x - 6)² + (y - 5)²

More about the coordinate geometry link is given below.

https://brainly.com/question/1601567

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Each hour, the number of bacteria in Dr. Nall’s petri dish tripled. What percent is the population compared to the population the hour before?
3%

Answers

9%

I need 20 letters so I'm just typing this but it is 9%

Help pleaseeeeeeeeeeeeeeeeeeeeeee

Answers

Answer:

the answer is B or at Least I think

(will give brainlist) please help me !!!! i really need help !!! Properly identify the following functions.

Answers

Answer: Choice A

f(x) is exponential

g(x) is quadratic

========================================================

Explanation:

Exponential functions are when the variarble is in the exponent only.

Quadratic functions are polynomials with the largest exponent being 2.

Answer:

f(x) is exponential; g(x) is Quadratic

Your friend is supposed to meet you at the beach between 12 pm and 1:30 pm. if you arrive at 12:25 pm and you do not see your friend, what is the probability that you will have missed your friend.
Please and thank you so much for your help!!!!!!

Answers

Answer:5/18

Step-by-step explanation:

1. Find how many minutes (90 minutes in all but you were there for 25)

2. Put 25 over 90 to find the probability in the time that you were not there.

3. Simplify the fraction to 5/18.

Please help, thanks

Let ABCD be a square and let ABEFG be a regular pentagon. Find angle BCE.

Answers

Answer:

No figure?

We need a figure to solve for this, please post the figure and I am ready to help!

Find the product of these complex numbers (8+6i)(-5+7i)

Answers

Answer:

Step-by-step explanation:

= -40 + 56i -30i +42i

= 68i - 40

Would somebody be willing to help me please! I really need to pass this lesson!!

Answers

Answer:

x= -2 y= 36 (-2. 36)

x = -1 y = 6 (-1, 6)

x = 1 y = [tex]\frac{1}{6}[/tex] (1, [tex]\frac{1}{6}[/tex])

Step-by-step explanation:

Our function is [tex]y = (\frac{1}{6})^x[/tex]

all we need to do is fill in our x (given in the table) to solve for y

[tex]y = (\frac{1}{6})^{-2}[/tex]

[tex]y = 36[/tex]

[tex]y = (\frac{1}{6})^{-1}[/tex]

[tex]y = 6[/tex]

[tex]y = (\frac{1}{6})^1 = \frac{1}{6}[/tex]

How many molecules of manganese are there in 1.75 moles? There are 6.02 x10^23 molecules/mol

Answers

Answer:  [tex]1.0535 \times 10^{24} \text{ molecules of manganese}[/tex]

The result is approximate.

=========================================================

Work Shown:

[tex]1.75 \text{ moles} \times \frac{6.02 \times 10^{23} \text{ molecules}}{1 \text{ mole}}\\\\(1.75 \times 6.02) \times 10^{23} \text{ molecules}\\\\(10.535) \times 10^{23} \text{ molecules}\\\\(1.0535 \times 10^1) \times 10^{23} \text{ molecules}\\\\1.0535 \times (10^1 \times 10^{23}) \text{ molecules}\\\\1.0535 \times 10^{1+23} \text{ molecules}\\\\1.0535 \times 10^{24} \text{ molecules}\\\\[/tex]

Note: In the second step, the "mole" units cancel when dividing.

Marsha sold 78 boxes of cookies. 51 boxes
were chocolate mint cookies. Of the remainder
sold, 1/3 were peanut butter crunchies. How many
boxes of peanut butter crunchies did Marsha sell?

Answers

Answer: 9

Step-by-step explanation:

78 subtract 51 is 27. One third of 27 is 9.

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