4) Use the difference of two squares method to evaluate 120squared - 119 squared

Answers

Answer 1

Answer:

239

Step-by-step explanation:

\(120^2-119^2\\=(120+119)(120-119)\ [a^2-b^2=(a+b)(a-b)]\\=239\)


Related Questions

Interactive Practice: Understand Statistical Questions and Data Distributions
Each day for three weeks, Isaias records the number of eggs his chickens lay. The frequency table
shows his data.
Which statement describes the data distribution?
The frequency increases as the number
of eggs increases.
The value with the greatest frequency is
6 eggs.
The range is 8 eggs.
The distribution is spread from 2 eggs to
7 eggs.
Number of Eggs
4
5
6
7
8
||||
11
Y
X

Interactive Practice: Understand Statistical Questions and Data DistributionsEach day for three weeks,

Answers

Understanding statistical questions and data distributions is an important concept in data analysis and statistics. A statistical question is one that can be answered by collecting and analyzing data.

These questions typically ask about a population or group of individuals and are often related to trends or patterns.

Data distributions refer to the way data is spread out or distributed within a dataset. This can include measures like the mean, median, and standard deviation. Understanding data distributions is important for making accurate interpretations and predictions based on the data.

To practice understanding statistical questions and data distributions, it's important to work with real-world datasets and ask questions that can be answered using statistical analysis.

This can involve looking at trends and patterns in the data and interpreting the results in a meaningful way. By building these skills, you can become better equipped to analyze and interpret data in a variety of settings.

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\sqrt{(3\sqrt{2} -\sqrt{14} )^{2} }
I am really having trouble with this, any pointers?

Answers

Answer:

???

Step-by-step explanation:

im so confused so what are you trying to answer?

Answer:

I don’t know the answer but what you could do to help would be the off little by little and then go to it that way or ask a parent or guardian for help

Step-by-step explanation:

A loan of $20,000 is made at 7% interest, compounded annually. After how many years will the amount due reach $41,000 or more?​

Answers

Answer:

Step-by-step explanation:

11 years

Using the compound interest formula. :

Final amount, A = 41000 or more

Rate, r = 7% = 0.07

Loan amount, P = 20,000

Number of compounding times per period = 1

A = P(1 + r/n)^nt

41000 = 20000(1 + 0.07)^t

41000/20000 = 1.07^t

2.05 = 1.07^t

t = log(2.05) / log(1.07)

t = 10.609727

t = 11 years

Find the length of AB.

Find the length of AB.

Answers

As BD intersects AC and EC in the same ratio length of AB is 1.5 units.

What is a triangle?

A triangle is a three-sided closed-plane figure formed by joining three noncolinear points. Based on the side property triangles are of three types they are Equilateral triangle, Scalene triangle, and Isosceles triangle.

As BD is parallel to AD BD intersects AC and EC in the same ratio.

Now, CD is 8 units and DE is 2 units so, CD is (8/2) = 4 times larger than

DE.

Therefore BC is also 4 times larger than AB,

So, 4AB = BC.

4AB = 6.

AB = 1.5

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A total of 400 students voted in school's singing contest. The circle graph shows results. How many votes did Adrian get

Answers

the answer is D i think .

Mary, James and Carlos sold 1/4 page advertisements for the school yearbook. Mary sold twice as many as Carlos did, and James sold 3 times as many as Mary did. What fraction of these advertisements did Carlos sell?
Answer Choices
A. 1/9
B. 1/7
C. 1/6
D. 1/5
E. 1/3

Please explain how you got your answer!!

Answers

A fraction is a number that represents part of a whole, and therefore, it is not a whole number

The correct option for the fraction of the adverts Carlos did sell is option A.

A. 1/9

Reason:

Known parameter are;

Number of 1/4 page advertisement Mary sold = Twice the number of page advertisement Carlos sold

The number of 1/4 page adverts James sold = 3 times the number  Mary sold

Let x represent the number of adverts Mary sold, ley y represent the number of adverts Carlos sold, and let z represent the number of adverts James sold, we have;

x = 2·y

z = 3·x

Therefore, we have;

z = 2 × 3·y = 6·y

z = 6·y

The total number of adverts sold, N = x + y + z

Substituting x = 2·y, and z = 6·y, gives;

N = 2·y + 6·y + y = 9·y

The total number of adverts sold = 9·y

The number of adverts Carlos sold = y

\(The \ fraction \ of \ the \ advertisement \ sold \ by \ Carlos = \dfrac{y}{9 \cdot y} = \dfrac{1}{9}\)

The correct option is A. 1/9

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You are starting a sock company. You must determine your costs to manufacture your product.
The start-up cost is $2000 (which helps you purchase sewing machines). Material and labor is $2.50 per pair of socks.

a. Write an equation to model your company’s cost for manufacturing the socks. (i.e. y=mx+b )
b. Which variable represents the domain? Explain your answer.
c. What is the domain for this situation?
d. Which variable represents the range? Explain your answer.
e. What is the range for this situation?
f. Using your equation, what would be the cost of manufacturing 25 pairs of socks?
g. How many socks could you make with $2500?
h. Create a coordinate graph on a sheet of paper to represent this situation. Describe the graph. Include the dimensions you would use for the x and y axes.

Answers

Answer:

these are your answers: a. y = 2.5x + 2000

b. The variable x represents the domain because the domain is the range of the possible x values.

c. x ≥ 0

d. The variable y represents the range because the range is the range of the possible y values.

e. y ≥ 2000

f. y = 2.5(25) + 2000

 y = 62.5 + 2000

 y = $2062.50

g. 2500 = 2.5x + 2000

  2.5x = 500

  x = 200

Step-by-step explanation:

you would have to factor in the different numbers in order to get these answers and try to solve the missing variable. hope this helps :)

if you take away 25 from a number you will be left with two and halftimes 30. what is the number?​

Answers

The answer would be 100.
If you take away 25 from (100) you get 75.
70 also equals 2.5*30

What is the approximate value of each radical expression to the nearest tenth?

Drag and drop the answer into the box to match each radical expression.​

What is the approximate value of each radical expression to the nearest tenth? Drag and drop the answer

Answers

Answer:

19−−√ 4.4

23−−√ 4.8

37−−√ 6.1

Step-by-step explanation:

feel free to give me brainliest

The value of the radical expressions is given below:-

√19 = 4.4

√23 = 4.8

√37 = 6.1

What is a radical expression?

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

The radical expression is one in which all the numbers are represented in the form of the roots.

The given expressions are √19,√23, and √37. The value of the radical expressions are given below:-

√19 = 4.4

√23 = 4.8

√37 = 6.1

Therefore, the answers are given above.

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Expanded form for 4082 × 1/10=

Answers

Answer:

4000+0+80+2×0.1

Step-by-step explanation:

after expanding, /means division so you diving

An object is translated by (x-2, y-6). If one point in the pre-image has the coordinates (-3, 7), what would be the coordinates of its image? (-1,7) O (-5,1) O(-9,5) O (-1, 13)​

Answers

Answer:(-5,1)

Step-by-step explanation:! X= -3 so -3-4= -7, Y= 7 so 7+2=9, So the coordinates will be (-7,9) I hope that I could help you

In a math chapter, students took two quizzes: Quiz A and Quiz F. Quiz A was fairly easy and nearly all of the students scored well. Quiz B was very difficult and nearly all of the students scored poorly. Describe the differences/similarities between the means and the standard deviations of the two quizzes.

Answers

Answer:

Some similaritys were they were both quizes everyone took and some differences are one was harder, students did better on 1 than te other and a similarity is they both effected a students grade.

Step-by-step explanation:

Answer:

AAAAAAAAAAAAAAAAAAAaa

Step-by-step explanation:

egregteg

What is the volume of the rectangular prism (please help urgent)

What is the volume of the rectangular prism (please help urgent)

Answers

Answer:

The answer is 1 1/9 ft

Step-by-step explanation:

Multiply 5/3 x 2/3 x 1

In Ms. Henrick's class, there are 10 boys and 12 girls. What is the ratio of boys to girls? Express your answer as a fraction in simplest form.

Answers

Answer:

5:6

Step-by-step explanation:

the ratio before would be 10/12 so you would have to divide both sides by 2 so you would get 5/6.Hope this helped

2 Mabaso has R140, Thabo has R70 and Ally has R35. What is the ratio of the amount of money Mabaso has, to the amount of money Thabo has and to the amount of money Ally has? Write the ratios in simplest form. The price of a steel table is R750. On Black Friday the table could be bought for R600. Calculate the percentage discount? Show ALL your calculations. Convert 125 g to kilograms. (1 kg = 1 000 grams) A green grocer packs 12 apples in a plastic bag. Calculate the number of bags he w need if he has 285 apples. The scale of a map is 1 500 000. Determine the actual distance in km if measurement on the map is 23,7 cm. Hint: 1 km = 100 000 cm​

Answers

The actual distance represented by 23.7 cm on the map is 355.5 km.

To find the ratio of the amount of money Mabaso has to the amount of money Thabo has and the amount of money Ally has, we can divide each amount by the smallest amount (which is R35) to simplify the ratio.

Mabaso has R140, Thabo has R70, and Ally has R35.

The ratio of Mabaso's money to Thabo's money is:

R140 ÷ R35 = 4

The ratio of Mabaso's money to Ally's money is:

R140 ÷ R35 = 4

Therefore, the ratio of the amount of money Mabaso has to the amount of money Thabo has and to the amount of money Ally has is 4:1:1.

To calculate the percentage discount of a steel table, we need to find the difference between the original price and the discounted price, and then divide it by the original price. Finally, we multiply the result by 100 to get the percentage.

Original price: R750

Discounted price: R600

Discount: R750 - R600 = R150

Percentage discount: (R150 ÷ R750) × 100 = 20%

So, the table has a 20% discount on Black Friday.

To convert 125 grams to kilograms, we divide the amount in grams by 1,000 (since there are 1,000 grams in a kilogram).

125 g ÷ 1,000 = 0.125 kg

Therefore, 125 grams is equal to 0.125 kilograms.

If a green grocer packs 12 apples in a plastic bag and has 285 apples, we divide the total number of apples by the number of apples per bag to determine the number of bags needed.

Number of bags needed: 285 apples ÷ 12 apples/bag = 23.75 bags

Since we can't have a fraction of a bag, we round up to the nearest whole number. Therefore, the green grocer would need 24 bags.

If the scale of a map is 1,500,000 and the measurement on the map is 23.7 cm, we can use the scale to determine the actual distance.

1 cm on the map represents 1,500,000 cm in reality.

23.7 cm on the map represents x cm in reality.

x = 23.7 cm × 1,500,000 cm = 35,550,000 cm

To convert cm to km, we divide by 100,000 (since there are 100,000 cm in a kilometer).

35,550,000 cm ÷ 100,000 = 355.5 km

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How do you solve for a percent

Answers

Answer:

It depends. If it is for a decimal like 0.10, then you would move the decimal place to the right twice, and just add a percent sign on it, so it would be 10%. If it is a fraction like 1/4, you turn it into a decimal by using a calculator, 1 divided by 4 = 0.25. 0.25 = 25%

Step-by-step explanation:

Hope this helps :)

please see picture for question

please see picture for question

Answers

So these || lines are cut by a transversal which means that alternate interior angles of the lines are equal which means y=45 degrees and since x+y=180 that means that x=135 degrees. Hope this helps

Sue played the same computer game.
She won 12 of the games she played, and so she estimated the probability of winning each game to be 0.4
How many games did Sue play?

Answers

30? Cause I take 12 times 0.4

What is the y-intercept of the function in the table?

What is the y-intercept of the function in the table?

Answers

the y intercept is the starting point of a graph, which is 0. find 0 in the graph. that’s your y intercept. (0,8)

Martin wants to buy a new bedroom set that cost $1590 including tax. Unfortunately he doesn’t have $1590 so he secures a 2 year loan from the furniture store at 9% interest to be repaid in 254 equal monthly installments. Find the monthly payment

Answers

The monthly Payment of a 2-year loan of $1590 with 9% interest that needs to be repaid in 254 equal monthly installments is approximately $11.92.

The monthly payment of a 2-year loan of $1590 with 9% interest which needs to be repaid in 254 equal monthly installments, we need to use the loan repayment formula. The formula is given as:

Monthly Payment = (Loan Amount x Monthly Interest Rate) / (1 - (1 + Monthly Interest Rate)^(-Number of Months))

Here,

Loan Amount = $1590

Interest Rate = 9% per annum

Time = 2 years = 24 months

number of Months = 254 (as there are 254 monthly installments)

First, we need to calculate the Monthly Interest Rate using the following formula:

Monthly Interest Rate = Annual Interest Rate / 12

The Annual Interest Rate is 9%,

so the Monthly Interest Rate is:  Monthly Interest Rate = 9 / 12 = 0.75%Putting the given values into the loan repayment formula,

we get: Monthly Payment = (1590 x 0.0075) / (1 - (1 + 0.0075)^(-254))= 11.92 (approx)

Therefore, the monthly payment of a 2-year loan of $1590 with 9% interest that needs to be repaid in 254 equal monthly installments is approximately $11.92.

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what is 200 x 300 kakakkakakakakkaakkkak

Answers

Answer:

60000 ty ..............

Answer:

60000

..............

what a difficult question !!! Do not ask such difficult questions ..lol

A box contains 2 red marbles, 5 green marbles and 8 blue marbles. Find the probability of the different events.

P ( 3 blue ) =
P (blue & green)

Answers

The value of the probability of the different events are,

The value of the probability P (3) is,

⇒ 1 / 5

And, The value of the probability P (blue & green) is,

⇒ 8/45

We have to given that;

A box contains 2 red marbles, 5 green marbles and 8 blue marbles.

Hence, Total marbles = 2 + 5 + 8 = 15

So, The value of the probability P (3) is,

⇒ 3 / 15

⇒ 1 / 5

And, The value of the probability P (blue & green) is,

⇒ 8/15 x 5/15

⇒ 8/15 x 1/3

⇒ 8 / 45

Thus, The value of the probability P (3) is,

⇒ 1 / 5

And, The value of the probability P (blue & green) is,

⇒ 8/45

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Which can provide the most energy in an ecosystem?

a mushroom ,a coyote, a pine tree ,a grassy meadow

Answers

A pine tree because when the pine cones fall they drop seeds with them so if another pine tree grows double the energy. Hope this helps I might be wrong

WILL



GIVE


BRAINLIST


.
..
.

..

WILL GIVE BRAINLIST......

Answers

The correct answer is Option (4).

What is the domain of the function y=√x+6-7

What is the domain of the function y=x+6-7

Answers

The domain of the function is x≥ -6. The correct option is B.

What are domain and range?

The domain of a function is the set of values that can be plugged into it. This set contains the x values in a function like f. (x). A function's range is the set of values that the function can take. This is the set of values that the function returns after we enter an x value.

Given that the function is y=√(x+6) -7. Here the domain will be all the x values we can put in the function.

When the graph is plotted for the function we get the starting point of the function as (-6,-7). So the domain will be all the values from -6 to infinity.

The graph of the function is attached with the answer below.

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What is the domain of the function y=x+6-7

In a sequence of numbers,
a₁ = -6, a3 = 4, a5 = 14, a6 = 19,
and a 24. Based on this
information, which equation
can be used to find the nth
term in the sequence, an?

Answers

Answer:

Step-by-step explanation:

To find the equation for the nth term in the sequence, we need to determine the pattern or rule that generates the sequence.

From the given information, we can see that the sequence is not arithmetic because the differences between consecutive terms are not constant. Instead, the sequence appears to be quadratic because the second difference between consecutive terms is constant.

Using the given values of a₁, a₃, and a₅, we can find the first few differences:

a₃ - a₁ = 4 - (-6) = 10

a₅ - a₃ = 14 - 4 = 10

So, the first difference is 10, which indicates a linear term in the equation for an. We can now use the given value of a₁ and the first difference to find the constant term in the quadratic equation. Let d be the common difference, then we have:

a₂ = a₁ + d = -6 + 10 = 4

a₄ = a₃ + d = 4 + 10 = 14

a₆ = a₅ + d = 14 + 10 = 24 - 1

a₇ = a₆ + d = 24 - 1 + 10 = 33

Now, we can find the second difference between consecutive terms:

a₄ - 2a₃ + a₂ = 14 - 2(4) + (-6) = 0

a₆ - 2a₅ + a₄ = 19 - 2(14) + 4 = -5

a₇ - 2a₆ + a₅ = 33 - 2(19) + 14 = 9

Since the second difference is constant (-5), this confirms that the sequence has a quadratic term in its equation. Let's assume the equation for the nth term is:

an = an² + bn + c

Substituting the values we know, we get three equations:

a₁ = a₁² + b₁ + c --> -6 = c

a₃ = a₃² + b₃ + c --> 4 = 9a + b + c

a₅ = a₅² + b₅ + c --> 14 = 25a + 5b + c

Solving this system of equations, we get:

a = 1/2, b = 19/2, and c = -6

Therefore, the equation for the nth term in the sequence is:

an = (1/2)n² + (19/2)n - 6.

I don’t know how to write it in a of n form but I do know t of n so here
T(n)=5n-11

it won't let me sent the full picture can I just send it to u instead?

it won't let me sent the full picture can I just send it to u instead?

Answers

Measurements

The length of a worker ant is 8.32x10^(-3) feet and the length of the queen ant is 1.9x10^(-2) feet.

We are required to find the difference in the lengths of both ants:

\(d=1.9\cdot10^{-2}-8.32\cdot10^{-3}\)

To calculate the difference, we must express both numbers with the same exponent. Let's use the exponent -2 as the common one:

\(d=1.9\cdot10^{-2}-0.832\cdot10^{-2}=1.068\cdot10^{-2}\)

This difference is expressed in feet. The correct choice is 1.068 x 10^-2

This number is too small to manage. For this situation, a smaller unit of measure should have been used. From the available options, the only one that is smaller than feet is inches.

Answer: Inches

Use the following information to answer the question.

One statement in a proof says, If AB=CD and CD=EF, then AB=EF.
What reason can be used for the statement?

A.) Transitive Property of Equality
B.) Addition Property of Equality
C.) Reflexive Property of Equality
D.) Symmetric Property of Equality

Answers

Answer:

a.) transitive property of equality

Step-by-step explanation:

Graphically determine the slopes of the line segments that create triangle ACD shown below. Write your final slopes in simplest form.​

Graphically determine the slopes of the line segments that create triangle ACD shown below. Write your

Answers

Answer:

Step-by-step explanation:

From the graph attached,

Coordinates of points A, C and D are,

A(-2, -7), C(-6, 7) and D(9, 2)

Slope of AD = \(\frac{y_2-y_1}{x_2-x_1}\)

                    = \(\frac{-7-2}{-2-9}\)

                    = \(\frac{9}{11}\)

Slope of CD = \(\frac{7-2}{-6-9}\)

                     = \(-\frac{1}{3}\)

Slope of AC = \(\frac{7-(-7)}{-6-(-2)}\)

                    = \(-\frac{14}{4}\)

                    = \(-\frac{7}{2}\)

The slope of a line segment AD is 9/11, the slope of a line segment CD is -1/3, and the slope of a line segment AC is -7/2.

Given :

Graphically determine the slopes of the line segments that create triangle ACD shown below. Points -- C(-6,7), D(9,2), and A(-2,-7)

a) The slope of a line segment AD is calculated as:

\(\rm m = \dfrac{2+7}{9+2}\)

m = 9/11

b) The slope of a line segment CD is calculated as:

\(\rm m = \dfrac{2-7}{9+6}\)

m = -1/3

c) The slope of a line segment AC is calculated as:

\(\rm m = \dfrac{7+7}{-6+2}\)

m = -7/2

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What is 8x+6+2+12x simplify

Answers

Answer:

20x+8

Step-by-step explanation:

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