Mathematics Middle School

l4-8(3-12)l - l5-11l

Answers

Answer 1
The answer is -36 and you can also use the calculator to help!

Hope you have the correct answer
Answer 2
Final answer:

The given mathematical expression is solved by simplifying within parentheses, performing multiplication, and understanding the absolute value concept, leading to a final answer of 70.

Explanation:

The given mathematical expression is |4-8(3-12)| - |5-11|. To solve this, we first need to simplify the expressions within the absolute value bars, following the order of operations (PEMDAS/BODMAS).

Step 1: Simplify inside the parentheses

3-12 = -9. So, the expression now is |4-8(-9)| - |5-11|.

Step 2: Multiply

8 times -9 equals -72. Substituting this, we get |4 - (-72)| - |5-11|, which simplifies to |4 + 72| - |5-11|.

Step 3: Simplify the absolute values

4 + 72 equals 76, so |76| is just 76 because absolute values ensure a positive outcome. Next, 5-11 equals -6, so |5-11| is |-6|, which is 6. Therefore, you have 76 - 6.

Step 4: Subtract

Lastly, subtracting 6 from 76 gives 70. So, the final answer to the given expression is 70.

Related Questions

Organize the following expressions from greatest to least by number of terms:
I. x + 2xyz
II. 3x + y + z
III. 2x2y + x2 − 3x + 4
IV. 9x2yz

Answers

the order is III, II, I, IV

Answer:

[tex]2x^2y + x^2 - 3x + 4~ (4)>3x + y + z ~(3)>x + 2xyz ~(2)>9x^2yz~ (1)[/tex]  

Step-by-step explanation:

We are given expressions in the question.

Term in an expression:

Each expression constitute terms.A term can be a number, a variable, or a constant multiplied by a variable or variables.Each term in an algebraic expression is separated by a + sign or - sign.

We need to find the number of terms in each expression:

1)

[tex]x + 2xyz\\\text{Number of terms}= 2[/tex]

2)

[tex] 3x + y + z\\\text{Number of terms}= 3[/tex]

3)

[tex]2x^2y + x^2 - 3x + 4\\\text{Number of terms} = 4[/tex]

4)

[tex]9x^2yz\\\text{Number of terms} = 1[/tex]

Arranged  from greatest to least by number of terms:

[tex]2x^2y + x^2 - 3x + 4~ (4)>3x + y + z ~(3)>x + 2xyz ~(2)>9x^2yz~ (1)[/tex]

what is the simplified form of the following expression 6xyz/2xz

Answers

Simplify the following:
(6 x y z x z)/2

6/2 = (2×3)/2 = 3:
3 x y z x z

3 x y z x z = 3 x^2 y z^2:
Answer:  3 x^2 y z^2

Julie uses crystals to make a bracelet. The lengths are; 1/2 , 5/8 , 3/4 , 1/2, 3/8, 1/2, 3/4, 3/8, 5/8, 1/2, 3/8, 5/8, 3/4.

6.What is the combined length of the 1/2-in. crystals? ________

7.What is the combined length of the 5/8-in.crystals? ________

8.What is the total length of all the crystals in the bracelet?________

What is the average length of each crystal in the bracelet?________

Please explain as much as possible. I have a quiz tomorrow and I need to pass it.

Answers

6. 
There are 4 half inch crystals. So the combined length would be 2 inches.
1/2 +1/2+1/2+1/2 = (since the bottoms are the same just add the tops) 4/2.
4/2 = 2.

7. 
There are 3 5/8 inch crystals. So the combined length would be 15/8 (or 1.875 or 1+7/8)
Same here, 5/8 +5/8 + 5/8 = 15/8.

8.
The length of all the crystals together would be 29/4 (or 7.25 or 7+1/4)
Here, just find a common denominator. In this case it would be four. Then, just multiply or divide the top number by whatever you did to the bottom one.

9.
The average length is: 29/52 (or 0.557)
Divide 29/52 by 13. (to find an average, add all the number and divide it by the amount of number you added.

What is 90,175,087,309 in expanded form

Answers

Word form:
ninety billion, one hundred seventy-five million, eighty-seven thousand, three hundred nine

Number form: view attachment

How do you solve number 3?

Answers

if you write that as an equation it would be 4x + 4 = 3
Then you subtract 4 from both sides making it
4x=-1
now you wnat to get x by itself to get the final answer so you divide both sides by 4 making the answer:
x= -1/4

A freight train is half a mile long. it travels at a speed of 60 mph. it comes to a tunnel that is 1 mile long. how long will it take the train to pass completely through

Answers

It would take the train 1 minute to pass through the tunnel.

1 ÷ 60 = 1/60 mph
1/60 mph also equals 1 min, since there are 60 min in an hour

Hope this helps!

Shen took out a loan for 225 days and was charged simple interest at an annual rate of 7.3%. The total interest he paid on the loan was $117. How much money did Shen borrow?

Answers

Answer:

$2600

Step-by-step explanation:

PLEASE HELP ME!!! Can anyone tell me an easy, step by step way to figure out if a trinomial is a perfect square or not? I have a test tomorrow. Do it like step 1, step 2, ect.

Answers

1. the first term is a positive perfect square
2. the last term is positive perfect square
3. the middle product is twice the product of the square root of the first term and the square root of the third term

Perfect square Trinomial factoring formula are:
a to the second power +2ab=

Would you just subtract the numerators like normal? Like 7-5 the answer would be 2/9

Answers

Yes, but only if the denominator is the same.

Hope this helps!

write an inequality for

A maximum ceiling height of 8 feet was required in the new buildings

Answers

h is less than or equal to 8
h ≤ 8

The inequality for a maximum ceiling height of 8 feet in new buildings is expressed as h <= 8, where h is the height in feet.

To represent the maximum ceiling height of 8 feet as an inequality, we use the following expression: h <= 8, where h represents the height of a building's ceiling in feet. This inequality states that the ceiling height must be less than or equal to 8 feet to comply with the regulations for new buildings.

If 3p+4q=8 and 4p+3q=13, what is q equal to?

Answers

q=-1 :) 
just solve for one variable of your choice in either function, in this case p then plug it into the other function to start solving for q. 

he short sides of a rectangle are 2 inches. The long sides of the same rectangle are three less than an unknown number of inches.

If the perimeter of the rectangle is 22 inches, what is the value of the unknown number?

a0 inches

Answers

The sum of two adjacent sides is 11 inches, so the long sides are 9 inches. The "unknown number" must be 12.

what is the value of x?


X=?

Answers

the answer of x is 54

What is the height of the 8 stacks

Answers

Okay so to find volume of an object, it's "length×height×width/breadth".

Volume= length×height×width

V = l × h × w

In this case, you're sort of going backwards, trying to find the height.

So input the info you have:

10 (2)/(3) = 1 (1)/(3) × 4 × height

Multiply...

10 (2)/(3) = 5 (1)/(3) × h

Move them by using the simple algebra rules

10 (2)/(3) ÷ 5 (1)/(3) = h

2 cubic feet = height

Find the product of (x + 7)2.

x2 − 14x + 49
x2 + 14x + 49
x2 − 49
x2 + 49

Answers

(x+7)^2=x^2+2*7x+7^2=x^2+14x+49

(a+b)^2=a^2+2ab+b^2
x2+14x+49 Answer B is the correct answer

UESTION 6

A researcher randomly surveyed seniors at a high school and asked how many books they read in the past year. The table shows the results.
Missing Metadata
Which statement is true?

Answers

Statement 1 is true: the majority of seniors read between 0 and 5 books. Statement 2 is false: the average number of books read is around 6-7, not between 10 and 11. Statement 3 is true: more seniors read 11-15 books than 16-20 books.

To determine which statement is true, let's first analyze the data provided in the table. Since the table isn't available, I'll make some assumptions to guide us through the explanation. Let's say the table looks like this:

Number of Books Read                Number of Seniors

0-5                                                  20

6-10                                                 15

11-15                                                 10

16-20                                               5

Now, we'll examine each statement to see if it aligns with the data:

"The majority of seniors read between 0 and 5 books in the past year."

This statement is true if the number of seniors who read 0-5 books is greater than the total number of seniors who read in other ranges. In this case, 20 seniors read 0-5 books, which is the highest count among all ranges. So, this statement is true.

"The average number of books read by seniors is between 10 and 11."

To find the average, we multiply the midpoint of each range by the number of seniors in that range, sum them up, and then divide by the total number of seniors. Doing the calculation, the average comes out to around 6-7 books, not 10-11. So, this statement is false.

"More seniors read 11-15 books than 16-20 books."

To verify this, we check the counts for each range. If the count for 11-15 books is greater than the count for 16-20 books, the statement is true. In this case, if 10 seniors read 11-15 books and 5 seniors read 16-20 books, the statement is true.

Based on this analysis, statements 1 and 3 are true, while statement 2 is false.

complete question=

Which statement is true regarding the survey conducted by a researcher who randomly surveyed seniors at a high school and asked about the number of books they read in the past year, as depicted in the provided table?

Suppose that the cost of drilling x feet for an oil well is C=f(x) dollars. a) What are the units of f'(x)? b) In practical terms, what does f'(x) mean in this case? c) What can you say about the sign of f'(x)? d)Estimate the cost of drilling an additional foot, starting at a depth of 300 ft, given that f'(300)=1000.

Answers

A. The term "units" refers to the measurements in the original question or problem. When looking at the question, the units we are measuring are dollars/feet. 
B. In this case, the f'(x) means we are looking for the cost (in dollars) to drill the next foot down. 
C. Since the cost increases the more feet we drill down, the sign of f'(x) is positive. 

The solution according to the given question is provided below in the explanation segment.

According to the question,

The cost of drilling x feet is:

[tex]c(x) = f(x) \ dollars[/tex]

(a) [tex]f'(x) = \frac{df(x)}{dx} \ \frac{dollars}{feet}[/tex]

(b) Throughout the practical terms,

[tex]f'(x)[/tex] represents how many dollars its going to cost one feet.

(c) [tex]f'(x)[/tex] is positive,

The cost of drilling increases as "x" feet increases.

(d) The cost of drilling an additional foot at 300 feet will be [tex]f'(x) \Delta \ x[/tex]

here,

[tex]\Delta x =0[/tex][tex]f'(300) =1000[/tex]

then,

= [tex]1000\times 1[/tex]

= [tex]1000 \ dollars[/tex]

If you want drill 1 more feet at 300 feet, its going to cost 100 dollars in one.

Thus the above answer is correct.              

Learn more:

https://brainly.com/question/19755846

What do absolute values and temperatures on the Kelvin scale have in common?



I dont know why math incudes science

Answers

Absolute zero is the lowest possible temperature where nothing could be colder and no heat energy remains in a substance.By international agreement, absolute zero is defined as precisely; 0 K on the Kelvin scale, which is a thermodynamic (absolute) temperature scale; and –273.15 degrees Celsius on the Celsius scale.
Final answer:

Absolute values in mathematics and Kelvin temperatures both provide 'absolute' measurements, with absolute value indicating distance from zero and the Kelvin scale starting at absolute zero, the theoretical absence of kinetic energy.

Explanation:

Both absolute values in mathematics and temperatures on the Kelvin scale represent 'absolute' measurements in their respective fields. In mathematics, the absolute value indicates the distance of a number from zero on the number line, irrespective of direction. Similarly, the Kelvin scale is used in physics and deals with the absolute temperature, where 0 K (absolute zero) represents a theoretical state where particles possess minimal vibrational motion, implying no kinetic energy.

The Kelvin scale is important in scientific work because it starts at this absolute zero point. Therefore, it allows for the measurement of true thermal energy. The Kelvin scale is similar to the Celsius scale in that the size of its degree is the same, but the Kelvin scale does not start at the freezing point of water. Instead, it starts at absolute zero, making it a true absolute scale that measures the fundamental property of temperature.

If the m<7 = 115 degrees, find the measure of <2

Answers

Answer:

The measure of [tex]\angle 2[/tex] is 115°.

Step-by-step explanation:

Now, assuming those angles are supplementary, then

[tex]m\angle 7+ m \angle 2=180\°[/tex]

Beacuse, sumplementary angles sum 180\°, due to their position on a straight angle.

We know by given that [tex]m \angle 7 =115\°[/tex], replacing this value, we have

[tex]115\°+ m\angle 2= 180\°\\m \angle 2=180\° - 115\°\\m \angle 2= 65\°[/tex]

Therefore, the measure of [tex]\angle 2[/tex] is 115°.

The measure of m<7 is equal to the measure of m<2 by alternate exterior angle. The measure of <2 is 115 degrees.

What are the angles formed by the transverse line cut by the transversal?

Angles formed by the transverse line cut by the transversal-

Corresponding angle- Corresponding angle keeps the same position on two different parallel line when cut by transverse. Alternate interior angle- This angle made inside the parallel lines cut by the transversal.Alternate exterior angle- This angle made outside the parallel lines cut by the transversal.Supplementary angle- Angle which made on the same line. The sum of the supplementary angle is equal to the 180 degrees.

Given information-

Two parallel lines are shown in the given image (attached below).

Here the measure of angle of 7 is 115 degrees.

The angle 5 is the supplementary angle of the angle 7. Thus,

[tex]\angle 5+\angle 7 =180\\\angle 5+115=180\\\angle 5=180-115\\\angle 5=65[/tex]

Thus the measure of angle 5 is 65 degrees.

Now again the angle 5 is the supplementary angle of the angle 3. Thus,

[tex]\angle 3+\angle 5 =180\\\angle 3+65=180\\\angle 3=180-65\\\angle 3=115[/tex]

Thus the measure of angle 3 is 115 degrees.

The angle 3 and the angle 2 cuts by the same line at the opposite side. Thus, angle 3 is equal to the angle 2.

Hence. the measure of angle 2 is 115 degrees.

Learn more about the angles formed by the transverse line cut by transversal here;

https://brainly.com/question/13207832

A rectangular prism measuring 10m and 7m along the base and 12m tall

Answers

Assuming you are asking for the volume by your given data points, if so, the volume of the rectangular prism is 840m^3.

A rectangular prism measuring 10m and 7m along the base and 12m tall.

The volume of the rectangular prism is 840 cubic meters.

How to find the volume of a right rectangular prism?

Suppose that the right rectangular prism in consideration be having its dimensions as 'a' units, 'b' units, and 'c' units, then its volume is given as:

[tex]V = a\times b \times c \: \: unit^3[/tex]

A rectangular prism measuring 10m and 7m along the base and 12m tall.

a = 10

b = 7

c = 12

The volume of the rectangular prism

= 10 x 7 x 12

= 840

Learn more about the volume of a right rectangular prism here:

https://brainly.com/question/21308574

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HELP NOW I WILL GIVE BRAINLEST!!!
What type of association does the graph show between x and y?

A scatter plot is shown. Data points are located at 1 and 5, 2 and 4, 3 and 3, 4 and 2, 5 and 1, 6 and 0.
Linear positive association
Nonlinear positive association
Linear negative association
Nonlinear negative association

Answers

Answer: Choice C) Linear negative association

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

The given points are:
(1,5)
(2,4)
(3,3)
(4,2)
(5,1)
(6,0)

The x values are: 1, 2, 3, 4, 5, 6
The y values are: 5, 4, 3, 2, 1, 0
In the same order

As x increases by 1, y decreases by 1
So we have perfect negative linear correlation

Side Note: The equation of the line that goes through all of the points is the equation y = -x+6 which can be written as x+y = 6. This line has a negative slope (slope = -1)

He’s rightAnswer:

Step-by-step explanation:

How far did Clara walk after getting off the bus? 2 1/2 miles, 1/4 miles, and 1 3/4 miles

Answers

More information must be added in order to do this problem, is there a table or graph?  Wish I could help!

Use the diagram to identify a segment parallel to HE

Answers

A few are AB, and GF. All of which are Parallel to HE.

Two segments are called parallel if they do not intersect each other anywhere.

Here we can see that AB , CD and FG are the three line segments that are parallel to HE.

So answer is AB, CD and FG.

A parasail is 400 feet above sea level m. Write a positive or negative integer that represents the situation

Answers

sea level is 0. Anything above sea level is positive. Anything below sea level is negative.

And since this one is 400 ft above sea level, then it is 400 (positive)

Answer:

[tex]\displaystyle 400[/tex]

Step-by-step explanation:

Anything below sea-level [below 0] is negative [−], and anything above sea-level [above 0] is positive [+].

I am joyous to assist you anytime.

What is the first quartile of the data displayed in this box-and-whisker plot?


143.0

113.0

99.5

43.5

Answers

The first quartile is:
C. 99.5


Good Luck
Hope This Helps!

Answer:

The answer is 99.5 for future people!

Step-by-step explanation:

If five bags of mulch covers 32 square feet, how many square feet could 16 bags covers?

Answers

Answer:

102.4 square feet

Step-by-step explanation:

(32/5)*16=102.4

Final answer:

One bag of mulch covers 6.4 square feet. Therefore, 16 bags will cover 102.4 square feet.

Explanation:

To find out how many square feet 16 bags of mulch will cover, we need to first determine the coverage of one bag. If 5 bags cover 32 square feet, then one bag covers 32 ÷ 5, which equals 6.4 square feet. Multiplying the area covered by one bag by 16 bags gives us a total coverage, of 6.4 × 16, which equals 102.4 square feet. Therefore, 16 bags of mulch will cover 102.4 square feet.

What is the value of 2+3n n=1/2

Answers

3x(1/2)=1.5
1.5+2=3.5
First you multiply 3 by 0.5, equaling 1.5. Then you ad 2 and 1.5 to get 3.5. Hope this helps you! :) 



plz mark branliest. 

In what quadrant on the coordinate plane is the point (5,-2) located?

Answers

Quadrant 4.
Cause Quadrant 4 Is a mixture of  negative and positive numbers and since x = 5 is positive you would look for the 5 and go down -2 which would be in quadrant 4. 

amanda arranged 5 baskets of flowers. she finished at 4:10pm it took her 20 mins to arrange each basket of flowers. at what time did amanda begin

Answers

You will need to figure out the total amount of time she spent arranging baskets (20 mins x 5 baskets = 100 mins).  You will then subtract this period of time from the beginning time.  So we will go back 1 hour and 40 minutes from 4:10 p.m.  This would put you starting the arrangements at 2:30 p.m.  Go back to 3:10 pm for the hour and 40 minutes before that is 2:30 pm. 

Adam’s car traveled 465.3 miles on 16.5 gallons of gas. Which equation can be used to determine the average number of miles that the car traveled on each gallon of gas?

Answers

Answer:

[tex]y=28.5x[/tex]

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a direct variation if it can be expressed in the form [tex]y/x=k[/tex] or [tex]y=kx[/tex]

In this problem

Let

x------> the number of gallons

y------> the number of miles

the relationship between the number of miles and the gallons of gas represent a linear direct variation

The constant of proportionality k is equal to the slope m

[tex]m=\frac{465.3}{16.5}= 28.2\frac{miles}{gallon}[/tex]

therefore

the equation of the linear equation

[tex]y=28.5x[/tex]


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