If a particular type of brick weighs 30 lb. per cubic foot, how much will a stack of bricks 4 ft. by 7 ft. by 8 ft. weigh?

Answers

Answer 1

Answer:

6720 lbs

Step-by-step explanation:

guessing

4 × 7 × 8 = 224 cubic feet

224 x 30 = 6720


Related Questions

raise f to the 8th power, then add 7 to the result ​

Answers

Answer:

[tex]f^{8} + 7[/tex]

Step-by-step explanation:

Please help!

Will give brainliest if possible!


Dmitri has a pair of standard dice; one die is blue, and the other die is yellow. He rolls both of his dice. How many ways could the number on the blue die be larger than the number on the yellow die?

Answers

Answer:  15 different ways

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

Explanation:

I'll use ordered pair notation to indicate the dice results. I'll have blue go first, then yellow second. Something like (6,3) means that blue got 6 while yellow got 3. Another example of (5,2) means the blue die shows 5 while the yellow one shows 2.

Now let's say the blue die rolls to show "1". Is it possible for the blue die to have a larger value than the yellow die? The answer is "no" because it's not possible to roll 0 on the yellow die, and we can't roll negative values either. This means that if we want the blue die to show a value larger than the yellow die, then it must be larger than 1.

If the blue die shows "2", then the only outcome to fit the description is to have the yellow die show "1". We write that as the ordered pair (2,1). Writing (1,2) is the other way around so we'll ignore that. Any other value on the yellow die is not possible since something like (2,5) does not fit the conditions given to us.

If the blue die shows "3", then we could have (3,1) or (3,2) that fit the conditions that the blue die is larger than the yellow one. We have two cases here compared to the one earlier.

If the blue die shows "4", then we could have (4,1) or (4,2) or (4,3). We have three cases here.

You can probably spot the pattern:

We have one case if the blue die shows "2"We have two cases if the blue die shows "3"We have three cases if the blue die shows "4"

and so on. The number of cases is one less than whatever the blue die value is showing. Overall we have 1+2+3+4+5 = 15 possible ways to have the blue die be a larger value than the yellow die. Use of a dice chart is handy to help confirm the answer.

A square has an area of 225 ft2. What is the perimeter of the square?
A.15 ft
B. 25 ft
C. 60ft
D. 100 ft
Help Asap !

Answers

Answer:

perimeter would be 60ft

Step-by-step explanation

and square has 4 sides so you would multiply 4 by the square root of 225

C

I took the test.............

A rectangular roof shingle has a perimeter of 32 inches and an area of 60 square inches. What are the dimensions of the shingle?

Answers

Answer:

Length = 6 inches, Width = 10 inches

Step-by-step explanation:

A rectangular roof shingle has a perimeter of 32 inches and an area of 60 square inches. What are the dimensions of the shingle?

Note :

L = Length

W = Width

The perimeter of a rectangle = 2( L + W)

The area of a rectangle = LW.

A rectangular roof shingle has a perimeter of 32 inches and an area of 60 square inches.

32 = 2( L + W)

Divide both sides by 2

16 = L + W.... Equation 1

L = 16 - W

Also:

LW = 60....... Equation 2

Let us substitute 16 - W for L in Equation 2

(16 - W)W = 60

16W - W² = 60

W² - 16W + 60 = 0

W² - 6W - 10W + 60 = 0

W(W - 6) - 10(W - 6) = 0

W - 6 = 0, W = 6 inches

W - 10 = 0, W = 10 inches

Solving for L

W = 10

L = 16 - 10

L = 6 inches

Therefore, the dimensions of the shingle =

Length = 6 inches, Width = 10 inches

Help please I don’t understand

Answers

Answer:

Step-by-step explanation:

Use SOH CAH TOA to recall how the trig functions fit on a triangle

SOH: Sin(Ф)= Opp / Hyp

CAH: Cos(Ф)= Adj / Hyp

TOA: Tan(Ф) = Opp / Adj

since we know the angle and the Hyp, and want to find the opp, use

SOH

Sin(41) = Opp / 111

111*Sin(41) = Opp

72.82255... = Opp

x = 72.8  ( rounded to nearest 10th )

ask if you want more explanation. :)

Combine like terms for the following expression:


−4x−x+3−9

Answers

Answer:

-5x-6

Step-by-step explanation:

Which value of x makes the inequality 1/4x < 8 true?

Answers

Answer:

d. x=2

Step-by-step explanation:

i hope this helps :)

Answer:x=2

Step-by-step explanation:

5.
Graph the inequality.

Match the graph to the correct inequality below.


A. x < 2

B. x>=2

C. x > 2

D. x<=2

Answers

Answer:

A. x < 2

Step-by-step explanation:

Open and closed circles are used to mark the end points of intervals. If the circle is open, it means the end point is NOT included in the interval, but if the circle is closed, it means the end point is included. Consider the interval . In this interval, the low endpoint, the 3, is not included because you have a 'less than' sign.

PLSSSSSSSS HELP ME ITS URGENT
Order from least to greatest

Answers

Answer:

i think that'll be -2/5,-2\2, 1.6, and then pi/5

Step-by-step explanation:

2. Find the missing length
z
15
18

Answers

I think that z equals 20


I NEED HELP ON THIS, WILL MARK BRAINLIEST

Answers

Answer:

5/13

Step-by-step explanation:

sin=opp/hyp

so sin B= 5/13

A coat costs $45.39. The tax is $3.64. What's the total cost? A: $3.64
B: $32.08
C: $48.03
D: $49.03

Answers

Answer:

d.49.03

Step-by-step explanation:

Pleasseee I’ll give BRAINLIEST

Answers

Answer:

It’s the third option

Step-by-step explanation:

Cuz 4^2 - 2^2 equals the third option

Help please it’s due tomorrow

Answers

Answer:

I suck a math also

Step-by-step explanation:

yeah

PLSS HELP!!!! State the dimensions of each matrix (number 3 and 4)

Answers

Two by two matrix
Three by three matrix

DOES BRAINLY HAVE SBAC ANSWERS

Answers

Answer:

Yeah well i mean i think they do bc they have like other apps for brainly like brainly.in and all the other one i think those are like for like smart smart people

Step-by-step explanation:

Answer:

yup

Step-by-step explanation:

Jacob has a list of the estimated costs for each semester to attend a four-year university. What is the total estimated cost to attend college for four years?
Tabel:
Item Cost
Tuition and Fees $3,725.00
Room and Board $2,800.00
Books and Supplies $700.00
Personal Expenses $900.00
A. $8,125
B. $16,250
C. $65,000
D. $32,500

Answers

Answer: A, 8125

Step-by-step explanation:

3,725 + 2800 + 700 + 900

3725 + 2800 = 6525

700 + 900 = 1600

6525 + 1600 = 8125

The total estimated cost to attend college for four years is $65,000.00.

Option C is the correct answer.

What is an expression?

An expression contains one or more terms with addition, subtraction, multiplication, and division.

We always combine the like terms in an expression when we simplify.

We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.

Example:

1 + 3x + 4y = 7 is an expression.

3 + 4 is an expression.

2 x 4 + 6 x 7 – 9 is an expression.

33 + 77 – 88 is an expression.

We have,

Number of semesters in 4 years.

= 2 x 4

= 8

Now,

To find the total cost to attend college for four years, we need to multiply the cost of each item by the number of semesters in four years and add them all together.

So,

Tuition fees:

8 semesters x $3,725.00/semester

= $29,800.00

Room and board:

8 semesters x $2,800.00/semester = $22,400.00

Books and supplies:

8 semesters x $700.00/semester = $5,600.00

Personal expenses:

8 semesters x $900.00/semester = $7,200.00

Therefore,

The total estimated cost to attend college for four years.

= $29,800.00 + $22,400.00 + $5,600.00 + $7,200.00

= $65,000.00

Thus,

The total estimated cost to attend college for four years is $65,000.00.

Learn more about expressions here:

https://brainly.com/question/3118662

#SPJ6

I will mark as brainiest!!!! Plzzzz help

Answers

Answer:

A) One hundred random students

Step-by-step explanation:

A group of students and workers entering a metro station were asked whether they were riding the bus or the subway. The two-way table shows their answers.

A 4-column table with 3 rows. The first column has no label with entries students, workers, total. The second column is labeled bus with entries 27, 42, 69. The third column is labeled subway with entries 21, 76, 97. The fourth column is labeled total with entries 48, 118, blank.

How many people were polled?

48
69
118
166

Answers

Answer:

its D. 166

Step-by-step explanation:

69+97= 166

48 students and 118 workers were polled making the total number of people polled to be 166.

What is a poll?

A poll is a situation in which we want to find out the opinion of the public regarding a particular issue. In this case, the number of persons polled are shown in the table.

We can see from the table that a total of 48 students and 118 workers were polled making the total number of people polled to be 166.

Learn more about poll: https://brainly.com/question/11428575

What is the 10th term of this sequence?
0.75, 1.5, 3, 6, 12,

A)20
B)24
C)384
D)768

Answers

Answer:

c-384

Step-by-step explanation:

Solve the system of equations by graphing
y = 6
y = 3x - 3

Answers

Answer: x=3, See the graph below

Step-by-step explanation:

SINCE THE QUESTION ASK FOR GRAPHING

See the graph below

-------------------------------------------------------------------

I AM ALSO GOING TO SHOW A SECOND WAY WITHOUT GRAPH FOR EXTRA

Given

y=6

y=3x-3

Use substitution (Substituting the value of y)

3x-3=6

Add 3 on both sides

3x-3+3=6+3

3x=9

Divide 3 on both sides

3x/3=9/3

x=3

Hope this helps!! :)

Please let me know if you have any questions

Answer:

Step-by-step explanation:

When finding the area of a quadrilateral, what operation would I use and why?

Answers

Use the formula width x height = area. If the width is 4 inches and the height is 2 inches, the area equals 8 inches squared.

What is 4a divided by 6

Answers

Answer:

2a/3

Step-by-step explanation:

Cancel the terms that are both in the numerator and the denominator. Or, in other words, simplify. 4a/6 can be simplified to 2a/3.

Which is the answer. A B C D?

Answers

Answer:

I’m pretty sure it’s B

Step-by-step explanation:

Plzzzz help worth 30 points plzzzz help

Answers

Answer:

$0.70

Step-by-step explanation:

PLEASE HELP LIKE PLEASE

Answers

The dimes don’t belong there because it’s more then 25 and the nickels pennies and quarter is 25

Can anybody please help me out

Answers

*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆

Answer: The Question needs more content!

Explanation:

I hope this helped!

<!> Brainliest is appreciated! <!>

- Zack Slocum

*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆

what is the measure of angle 4? Pls i need help​

Answers

Answer:

254

Step-by-step explanation:

the angle is 254

The solution of
y=x-1 and -x+3/2=-y

Answers

Answer:

x=y+1  and  x=y+ 2/3

Step-by-step explanation:

x=y+1 : Add 1 to both sides, switch sides

x=y+ 2/3 : Regroup terms, Subtract 3/2 from both sides,  Multiply both sides by -1

​ Hope this helps!! :)

(HELP 10 POINTS) Find the difference. Write your answer in standard form.

(−2x2+3)−(3x2+4x−5)

Answers

9514 1404 393

Answer:

  -5x² -4x +8

Step-by-step explanation:

Eliminate parentheses and collect terms.

  (-2x² +3) -(3x² +4x -5)

  = -2x² +3 -3x² -4x +5

  = (-2-3)x² -4x +(3 +5)

  = -5x² -4x +8

-5x² -4x +8  

remove parentheses and collect terms.

 (-2x² +3) -(3x² +4x -5)

 = -2x² +3 -3x² -4x +5

 = (-2-3)x² -4x +(3 +5)

 = -5x² -4x +8

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