Consider the same rectangle of the preceding 8 units. Squares of x by x units are cut out of each corner, and then the sides are folded up to create an open box. Express the volume of the box as a polynomial function in terms of x problem. Squares of 2x by 2x units are cut out of each corner. Express the volume of the box as a polynomial in terms of x.

Answers

Answer 1

Answer:

V(x) = l*w*x  - 2*l*x² - 2*w*x² + 4*x³

Step-by-step explanation:

The volume of any box is:

a * b * h       where a is the length, b is the wide and h is the height

Assuming we have cardboard of dimensions: l * w

l - 2*x  will be length  of the box and  

w - 2*x will be wide of the box

h  =  x the height, then:

V(x) = ( l  -  2*x  ) *  (  w  -  2*x ) * x

V(x) = [ ( l*w - 2*l*x - 2*w*x + 4*x² ] * x

V(x) = l*w*x  - 2*l*x² - 2*w*x² + 4*x³


Related Questions

A company sells x units of an item each day at the rate of Rs. 50. The cost of manufacturing each unit of an item is Rs. 36.50 and the dristributor demands a charge of Rs. 3.50 per unit. If the daily overhead charge is Rs. 2600, find the profit function. Also find the profit if 360 units of an item are produced and sold daily?​

Answers

Answer:

Y(x) = 10x - 2600

Profit= RS. 1000

Step-by-step explanation:

Amount sold per item=RS. 50.

Cost of manufacturing= RS. 36.5

Distributor charges= Rs 3.5

Daily over head charge= RS.2600

Profit function Y (x)

Y (x) =x(50) -36.5(x) -3.5(x)-2600

Y(x) = (50-36.5-3.5)x-2600

Y(x) = 10x - 2600

If x= 360

Profit Y = 10(360) - 2600

Profit Y = 3600-2600

Profit = 1000

Profit= RS. 1000

The 7th grade had a book drive. They donated 2/3 of the books to the st James school. Then donated 1/4 of the remaining books to widener. If they had 16 books left after donating to the 2 schools, how many books did they collect in the book drive?

Answers

Answer: 192  books

Step-by-step explanation:

2/3 + 1/4 = 11/12

16 remaining books = 1/12

16 x 11 = 176

176 + 16=192

Answer:

ksdljfdacnkjdsfhbjfjkn

Step-by-step explanation:

Imagine you have five nieces and nephews and their ages are 4, 10, 8, 9, and 15. The average age of your nieces and nephews is _______, while their median age is

Answers

The average age is 9.2 the median is 9

Below are some data examining whether reading the textbook for this course is related to class enjoyment.
Time Reading Textbook 1 2 3 4 5 6 1 2 3 5
Class Enjoyment 20 24 35 46 67 80 12 34 34 78
Note: Text Reading Time: 1 = does not read – 6 = only book I have ever read. Class Enjoyment: 1-100 scale.
Calculate the slope
a) 14.50
b) 13.36
c) 19.00
d) 12.43

Answers

Answer:

13.36

Step-by-step explanation:

I will first create a table

X. Y. XY. X²

1. 20. 20. 1

2. 24. 48. 4

3. 35. 105. 9

4. 46. 184. 16

5. 67. 335. 25

6. 80. 480. 36

1. 12. 12. 1

2. 34. 68. 4

3. 34. 102. 9

5. 78. 430. 25

ΣX = 32

ΣY = 430

ΣXY = 1744

ΣX² = 130

n = 10

The formula for regression line is given as :

Y = a + bX

a = intercept

b = slope

The question requires us to find b which is the slope.

b = nΣXY-ΣXΣY/nΣX²-(ΣX)²

= 10x1744-32x430/10x130-(32)²

= 17440-13760/1300-1024

= 3680/276

= 13.36

b = 13.36

HELP PLS! THANK YOU SO MUCH! Consider the quadratic equation 3x^2-6=2x. (a) What is the value of the discriminant? (b) What does the discriminant of the quadratic equation tell about the solutions to 3x^2-6=2x

Answers

Answer:

see explanation

Step-by-step explanation:

Given a quadratic equation in standard form, ax² + bx + c = 0 ( a ≠ 0 )

Then the discriminant Δ = b² - 4ac informs us about the nature of the roots.

• If b² - 4ac > 0 then 2 real and distinct roots ( solutions )

• If b² - 4ac = 0 then 2 real and equal roots

• If b² - 4ac < 0 then roots are not real

Given

3x² - 6 = 2x ( subtract 2x from both sides )

3x² - 2x - 6 = 0 ← in standard form

with a = 3, b = - 2, c = - 6 , thus

b² - 4ac = (- 2)² - ( 4 × 3 × - 6) = 4 - (- 72) = 4 + 72 = 76

Since b² - 4ac > 0 then the solution is 2 real and distinct roots

What is the best estimate for 1/5x24.5?

Answers

Answer:

5.

Step-by-step explanation:

24.5 is close to 25 and 25 * 1/5 = 5.

Sandra has only Re 1 and Rs 2 coins with her. If the total number of coins that she has is 50 and

the amount of money with her is Rs 75, then find the number of Re 1 and Rs 2 coins​

Answers

I hope this helps you. Plz mark me as the brainliest.

(7-10x)/5 simplify express on integers and fractions

Answers

Answer:

-2x + 7/5

Step-by-step explanation:

(7-10x)/5

= [tex]\frac{-10x}{5}[/tex] + [tex]\frac{7}{5}[/tex]

= -2x + 7/5

A manufacturer has been selling 1000 flat-screen TVs a week at $400 each. A market survey indicates that for each $10 rebate offered to the buyer, the number of TVs sold will increase by 100 per week.
(a) Find the demand function (price p as a function of units sold x).
(b) How large a rebate should the company offer the buyer in order to maximize its revenue?
(c) If its weekly cost function is C(x) = 73,000 + 110x, how should the manufacturer set the size of the rebate in order to maximize its profit?

Answers

Answer:

Explained below.

Step-by-step explanation:

(a)

It is provided that the price function for 1000 TVs is,

p (1000) = 400.

Also provided that if rebate of $10 is given then sale increases by 100 per week.

Let x be the number of unit sold per week then (x − 1000) is the increase in the number  of units sold.

Then the price function is:

[tex]p(x)=400-\frac{1}{10}(x-1000)[/tex]

       [tex]=400-\frac{x}{10}+100\\\\=500-\frac{x}{10}[/tex]

Thus, the demand function is, [tex]p(x)=500-\frac{x}{10}[/tex].

(b)

The revenue function is:

[tex]R(x)=x\cdot p(x)[/tex]

        [tex]=x[500-\frac{x}{10}]\\\\=500x-\frac{x^{2}}{10}[/tex]

Maximize the revenue as follows:

      [tex]\frac{d}{dx}(R(x))=0[/tex]

[tex]\frac{d}{dx}[500x-\frac{x^{2}}{10}]=0[/tex]

        [tex]500-\frac{x}{5}=0[/tex]

                 [tex]\frac{x}{5}=500[/tex]

                 [tex]x=2500[/tex]

Observe that R'(x) > 0 for 0 ≤ x < 2500 and R'(x) < 0 for x > 2500. Hence, first  derivative test will lead to the conclusion that maximum occurs at x = 2500.

Compute the value p (2500) as follows:

[tex]p(2500)=500-\frac{2500}{10}=500-250=250[/tex]

Then the rebate to maximize the revenue should be: $400 - $250 = $150.

(c)

The weekly cost function is,

[tex]C(x) = 73000 + 110x[/tex]

Compute the profit function as follows:

[tex]P(x)=R(x)-C(x)[/tex]

        [tex]=500x-\frac{x^{2}}{10}- 73000 - 110x\\\\=390x-\frac{x^{2}}{10}- 73000[/tex]

Compute the marginal profit as follows:

[tex]\text{Marginal profit}=P'(x)\\=\frac{d}{dx}P(x)\\=\frac{d}{dx}[390x-\frac{x^{2}}{10}- 73000]\\=390-\frac{x}{5}[/tex]

Compute the value of x for P'(x) = 0 as follows:

[tex]P'(x)=0\\\\390-\frac{x}{5}=0\\\\x=390\times 5\\\\x=1950[/tex]

Observe that P'(x) > 0 for 0 ≤ x < 1950 and P'(x) < 0 for x > 1950. Hence, first

derivative test will lead to the conclusion that maximum occurs at x = 1950.

Compute the value p (1950) as follows:

[tex]p(1950)=500-\frac{1950}{10}=500-195=305[/tex]

Then the rebate to maximize the profit should be: $400 - $305 = $95.

The net of a square pyramid is shown
below. What is the surface area of the
pyramid?

A 100 cm2
B 136 cm2
C 172 cm2
D 192 cm2

Answers

Answer:

Option (D)

Step-by-step explanation:

Surface area of a square pyramid is determined from the formula,

Surface area = Area of the square base + 4(Area of one lateral triangular side)

Area of the base = (Side)²

                            = 8²

                            = 64 cm²

Area of one lateral triangle = [tex]\frac{1}{2}(\text{Base})(\text{Height})[/tex]

                                             = [tex]\frac{1}{2}(8)(8)[/tex]

                                             = 32 cm²

Therefore, surface area of the square pyramid = 64 + 4(32)

                                                                              = 64 + 128

                                                                              = 192 cm²

Therefore, Option (D) will be the correct option.

V2y + 3 = 11

3. What is the value of y in this equation?
O A. y = 32
OB. y = 64
O C. y = 14
OD. y = 16

Answers

Answer:

v2y +3=11

V2y=11- 3

V2y=8

2y=8²

2y=64

y=64÷2

y=32 Answer

Plewse help me idk how to do it (20 points)!!

Answers

It’s liner function

The explicit formula for a straight line is written as y = Mx + b, where m is the slope and b is the y intercept.

The y intercept is the y value of where the line crosses the x axis. On the above picture the line crosses the x axis at -2, so the y intercept is -2

Use 2 points in the line for the slope:

Slope = change in y over the change in x:

(0,-2) (6,0)

Slope = (0- -2) / (6-0) = 2/6 = 1/3

Answer: y = 1/3x-2

1.008÷0.8
show work

Answers

Answer:

1.26

Step-by-step explanation:

1.008 divided by o.8 =1.26

Answer:

1.26, Dude get a calculator

Step-by-step explanation:

0 1. 2 6 0

8 1 0. 0 8 0

− 0        Listen. Its hard to do long division ona computer.

 1 0      

−   8      

   2 0    

 − 1 6    

     4 8  

   − 4 8  

       0 0

     −   0

         0


Peter mixes 4 1/3 cups of orange juice, 2 1/3 cups of ginger ale, and 6 1/2 cups of strawberry lemonade to make some punch. What is
the total number of cups of punch that Peter makes?

Answers

Answer:

13 1/6 cups.

Step-by-step explanation:

4 1/3 + 2 1/3 + 6 1/2

= 4 + 2 + 6 + 1/3 + 1/3 + 1/2

= 12 + 2/6 + 2/6 + 3/6

= 12 + 7/6

= 12 + 1 1/6

= 13 1/6.

Answer:

13 1/6

Step-by-step explanation:

PLEASE HELP! URGENT! Exponential function f is being represented by the table (photo attached) the function “g” is an exponential function passing through the points of (0, 15) , (2, 0). Which of the statements below correctly compared the behavior of these two functions on the interval (0, 2) ??

Answers

Answer:

C) Both functions are decreasing and both are positive on the interval (0;2)

Step-by-step explanation:

As known the exponent function has no minimum and has no maximum.

Otherwise exponent function can be only or increasing or decreasing for all x.

That means that in case y(x2)>y(x1) and  if x2>x1-  function is increasing.

That means that in case y(x2)<y(x1) and  if x2>x1-  function is decreasing.  

Lets check what is going on with the function f(x)

If x1=0        f(x1)=24

If x2=2        f(x2)=0

So    x2>x1 however f(x2)<f(x1)=> function is decreasing

Similarly g(x)

If x1=0   g(x1)=15

If x2=2   g(x2)=0

So x2>x1 however g(x2)<g(x1) => function is decreasing

So bothfunctions are decreasing.

Because f(x) is decreasing the function meaning with argument x1=0 has max in the interval x∈(0;2) And function meaning has the minimum if argument x2=2.   So the function F(x) in interval (0;2) is changing from 24 to 0 => is positive on the interval (0,2)

The same is with g(x) .  g(x) gonna be positive on the interval (0;2)

Write each statement as a decimal to two decimal places.
$6.00 to 95 cents =
3 hours to 35 minutes =
42 inches to 2 feet =
(Hint: there are 12 inches in 1 foot.)

Answers

Answer:

Step-by-step explanation:

To convert the statement to decimals, we need to use the following conversion rate.

Since $1 = 100cents

Writing $6.00 to 95 cents  as a decimal, we need to writw both units in the same units.

$6.00 to 95 cents = 600cents to 95 cents

= 600cents:95cents

= 600cents/95cents

= 6.32 (to 2dp)

For 3 hours to 35 minutes

SI=ince 1 hour = 60minutes

3 hours to 35 minutes  = (3*60)minutes to 35 minutes

= 180minutes : 35 minutes

= 180minutes/35 minutes

= 5.14 (to 2dp)

For 42 inches to 2 feet

Given 12inches = 1 foot

42 inches to 2 feet = 42inches to (2*12)inches

= 42inches to (24)inches

= 42inches : 24 inches

= 42inches/24 inches

= 1.75 (to 2dp)

If angle DFG ~ angle RPQ, the value of x=_____

Answers

Answer:

[tex] x = 6.25 [/tex]

Step-by-step explanation:

Given that ∆DFG ~ ∆RPQ, therefore, [tex] \frac{DF}{PR} = \frac{DG}{QR} = \frac{FG}{QP} [/tex] (similarity theorem).

DF = 10

PR = 8

DG = 5

QR = 4

QP = 5

FG = x

[tex] \frac{10}{8} = \frac{5}{4} = \frac{x}{5} [/tex]

Using [tex] \frac{5}{4} = \frac{x}{5} [/tex] , solve for x

cross multiply:

[tex] 4*x = 5*5 [/tex]

[tex] 4x = 25 [/tex]

[tex] x = \frac{25}{4} [/tex]

[tex] x = 6.25 [/tex]

Directions: Round $45.58 to the nearest dollar.
$None of these
$46.60
$45.60
$45
$45

Answers

Answer:

none of these unless one of the 45s are 46

Step-by-step explanation:

nearest dollar means no cents so $46.60 and $45.60 are out

58 is over 50 so the two 45s go away

the only option left is none of these or 46 if you accidentally put 45 instead of 46

Solve the following proportion for x.

X/11 = 7/17

Round your answer to the nearest tenth.

X = ??

Answers

Answer:

77/17 = 4.52941Nearest tenth = 4.5

Step-by-step explanation:

[tex]\frac{x}{11}=\frac{7}{17}\\\\\mathrm{Multiply\:both\:sides\:by\:}11\\\\\frac{11x}{11}=\frac{7\cdot \:11}{17}\\\\\mathrm{Simplify\:}\frac{11x}{11}:\quad x\\\\\mathrm{Simplify\:}\frac{7\cdot \:11}{17}:\quad \frac{77}{17}\\\\x=\frac{77}{17}[/tex]

Paulina’s father pays her $20 per month for doing chores. In April, she makes a deal with him. Rather than paying her $20, he can pay her 1¢ on the first day of the month, 2¢ on the second, 4¢ on the third, and continue each day by doubling the amount he paid on the previous day. Use the properties of exponents to write expressions for the first 5 days of the month. The, explain if Paulina will make more or less than $20 per month using this pattern.

Answers

Answer:

Step-by-step explanation:

This is a geometric sequence with first element 1 and common ratio 2:

a(n) = 1*2^(n - 1)

Thus, a(1) = 1

a(2) = 2^(2 - 1) = 2

a(3) = 2^(3 - 1) = 4

a(4) = 2 ^( 4 - 1) = 2^ 3 = 8

a(5) = 2^(5  -1) = 2^ 4 = 16

One month is approximately 30 days.  Therefore,

a(30) = 2^ (30 - 1) = 2^29 = 536870912

Using this pattern, Paulina will "make" $536870.12 vs $20 via Paulina's father's plan.

Under what circumstances can a very small treatment effect be statistically significant? Explain your response.
a) if the sample size big and the sample variance is small
b) if the sample size and the sample variance are both big
c) if the sample size is small and the sample variance is big
d) if the sample size and the sample variance are both small

Answers

Answer:

The correct answer is:

if the sample size big and the sample variance is small (a)

Step-by-step explanation:

The sample size of a study is the group of subjects that are selected from the general population and is considered an accurate representation of the population. With a large sample size, the likelihood of type I and type II errors occurring reduces. Increasing sample size allows the researcher to increase the significance level of the finding because it increases accuracy in coverage of the universal set, hence the effect accurately mirrors what goes on in the whole group. However, smaller sample size, on the other hand, does not accurately mirror the whole larger group.

The sample variance is the difference between the observed value and the true(actual). It is a measure of deviation or variability between the results and the true value. A smaller variance means increase closeness to the true value hence increase in accuracy and statistical significance.

Therefore, when the treatment effect is small but the sample size is large and variance is small, then the result is statistically significant.

If a and b are two digits, then the following fraction
(ab0+ab0ab)÷(ab) -1 is equal to.

A.21 B. 1010
C. 110
D. 111
E. 1110​

Answers

Answer:

B. 1010

Step-by-step explanation:

Simplify:

(ab0+ab0ab) ÷ (ab) - 1

Note that:

ab = 10a +bab0 = 10* (10a + b) = 10abab0ab = 1000ab + ab = 1001 ab

Therefore:

(ab0+ab0ab) ÷ (ab) - 1 =(10ab + 1001ab) ÷ (ab) - 1 =(1011ab) ÷ (ab) - 1 = 1011 - 1= 1010

Correct choice is B.1010

The answer to this is B.

4.
Oscar Hammerstein's Island, an amusement park, plans a TV ad campaign. It will
run 30-second ads for the next 20 days on a daytime show. Hammerstein's will
also run 30-second ads for the next 5 days during a prime-time show. A 30-second
daytime ad costs $6,200, a 30-second prime-time ad costs $165,000. What is the
total ad campaign cost?

Answers

Answer:

Hey there!

30-second ads for 20 days on a day time show.

6200(20)=124000

30-second ads for 5 days on a prime time show.

165000(5)=825000

124000+825000=949000 dollars.

Let me know if this helps :)

what is 24,159 -3,168 =

Answers

Answer:

20991

Step-by-step explanation:

mg+rg=2H, solve for g

Answers

Answer:

[tex]g=\frac{2\,H}{m+r}[/tex]

Step-by-step explanation:

Starting with :

m g + r g = 2 H

extract "g" as a common factor on the left of the equal sign:

g (m + r) = 2 H

Now, in order to solve for "g" , divide both sides of the equal sign by the binomial (m + r):

g = (2 H )/(m + r)

[tex]g=\frac{2\,H}{m+r}[/tex]

If x/5+6 =-14, then x=

Answers

Answer:

(5+6)14 = x

11×14 = x

154 =x

Answer:

x = -100

Step-by-step explanation:

x/5+6 =-14

Subtract 6 from each side

x/5+6 -6 = -14-6

x/5 = -20

Multiply each side by 5

x/5*5 = -20*5

x = -100

What is the best estimate of the number corresponding to A?
A
1
2
3
4
0 2.6
0 2.4
0 2.2
2.3

Answers

Answer:

2.6

Step-by-step explanation:

Let us assume that the unit of measurement is centimetre (cm)

To obtain the value of A, do the following:

From the diagram above, we can say that the scale is 5 cm to 1 unit since there are 5 lines before a number.

Next, we shall determine the value of 1 cm.

5 cm = 1 unit

Therefore,

1 cm = 1/5 = 0.2 unit

This means that 1 small line is equivalent to 0.2 unit.

Now we shall determine A as follow:

A is exactly 3 lines (3 cm) after number 2.

1 cm = 0.2 unit

3 cm = 3 x 0.2 = 0.6 unit

Now, add 0.6 to 2 to obtain the value of A.

A = 2 + 0.6

A = 2.6

Therefore, A correspond to 2.6

Write this statement in your own words: ∃x ∈ ℕ, y ∈ ℤ|x² = y² Rewrite this using the appropriate mathematical notation: Even numbers are in the set of integers.

Answers

Answer:

See below.

Step-by-step explanation:

1)

So we have:

[tex]\exists x\in\mathbb{N},y\in\mathbb{Z}|x^2=y^2[/tex]

This can be interpreted as:

"There exists a natural number x and an integer y such that x² is equal to y²."

2)

So we want even numbers are in the set of integers.

[tex]\{2n:n\in\mathbb{Z}\}\in\mathbb{Z}[/tex]

This is interpreted as:

"The set of even numbers (2n such that n is an integer) is in the set of integers"

To which subset(s) of real numbers does the number 4 belong? 1. Irrational numbers 2. Integers 3. Whole numbers 4. Natural numbers 5. Rational numbers

Answers

Answer:

whole number

hope it helps

3/4x=21 Can you please assist?

Answers

Answer:

x =28

Step-by-step explanation:

Divide the numbers

Combine multiplied terms into a single fraction

Eliminate fraction denominators

Simplify

Divide both sides of the equation by the same term

Other Questions
what is the missing length? help plssss The Appalachian Mountains pass through which area of Georgia? 50 POINTS PLS HELP ASAP!!! A. Along the southern border B. Across the north part of the state C. In the southeast corner D. Through the center of the state pls help!!will give the brainliest!Need explanationUrgent!!! At the sixth-grade school dance, there are 132 boys, 89 girls, and 14 adults. Write the ratio of the number of boys to the number of girls. Type your answer either in the format: 3:4 with no spaces, OR in the format 3 to 4. convert the repeating decimals to fractions1:) repeating 7? What are the similarities and differences between absolute and constitutional monarchy? Which of the following equations is quadratic? (a) x1x + 1) = 0(b) 5(4x + 2) = 3 (c) (x+3)(x + 4) = 5 31. Use the prompt in parentheses to answer the following question. Your answer should be a complete sentence in the future tense. What are your plans after you graduate from high school? (travel to Mexico, go to a university, meet a lot of people) 32. Use the prompt in parentheses to answer the following question. Your answer should be a complete sentence in the conditional tense. If you had one million dollars to spend on anything you wanted, what would you do? (buy a car, have a big party for my friends). 33. Translate the following passive (se) voice construction into Spanish. It is prohibited to talk in class. 34. Translate the following sentence into Spanish. I will be able to study this weekend. 35. Using the expression ya, translate the following sentence into Spanish. I already spoke with my parents. 36. Use the prompt in parentheses to answer the following question. Your answer should be a complete sentence in the preterite tense. What time did you start your Spanish exam? (1 in the afternoon) 37. Your friends are at your house for a party, and your mom has ordered a lot of food. Use an affirmative command to tell them to please eat a lot of pizza. 38. Translate the following sentence into Spanish. Mara is taller than Pedro. 39. Using the expression ya, translate the following sentence into Spanish. I no longer go to bed early. 40. Translate the following sentence into Spanish. I will go out on Friday night after the final exam. Using a neoclassical model, what will the level of cyclical unemployment be when an economy is producing at potential GDP Please, can someone help me with this problem? I would really appreciate it if you could explain the process too. Write a justification for each step given that EG=FH Video Example EXAMPLE 3 Find the local maximum and minimum values and saddle points of f(x, y) = x4 + y4 4xy + 1. SOLUTION We first locate the critical points: the 3rd and the 4th terms of an arithmetic progression are 6and30 respectively determine the common term,first term and the 10th term What is the difference between 4 and 622. Like the CISSP, the SSCP certification is more applicable to the security__________ than to the security __________.A) technician, managerB) manager, engineer C) manager, technicianD) technician, executive When did Isaac Newton start learning facts about Force and Motion? A company raised $50,000 in cash by taking a one-year loan of $10,000 and a 5-year loan of $40,000. Which of the following is the correct journal entry to record this transaction? A. Debit short-term debt $40,000; debit retained earnings $10,000; credit cash $50,000B. Debit short-term debt $50,000; credit cash $50,000C. Debit cash $50,000; credit long-term debt $50,000D. Debit cash $50,000; credit short-term debt $10,000; credit long-term debt $40,000 _____ class is a person's rank in society. Cultural Economic Social Here is a number line with some points labeled. Type the answers into the boxes below. a. Write the number A as a fraction. B as a decimalC as a decimial and a fraction Give one example each of "primary, secondary, and tertiary prevention of motor vehicle crashes among teenage drivers.