Mathematics Middle School

What is the first step in simplifying the expression 11x-2-3(1-7x)^2+(x+1)

Answers

Answer 1

Answer with Step-by-step explanation:

We are given a expression:

[tex]11x-2-3(1-7x)^2+(x+1)[/tex]

We have to determine the first step in the solution of the above expression.

First step will be to solve the term [tex](1-7x)^2[/tex]

We will firstly square the term 1-7x

[tex]11x-2-3(1-7x)^2+(x+1)\\\\=11x-2-3(1+49x^2-14x)+(x+1)\\\\=11x-2-3-147x^2+42x+x+1\\\\=-147x^2+54x-4[/tex]

Hence, First step is:

solve the term [tex](1-7x)^2[/tex]

Related Questions

Quadrilateral ACEG≅ Quadrilateral MNPR

Which statement is true?

Answers

Line CE is congruent to line NP is the true statement.

You eat 3 8 of a pie and your sister eats 1 4 of the pie. Explain who ate more of the pie

Answers

First, you need to find a common denominator, you should get 2/8 and 3/8. So, you ate more of the pie

You ate more of the pie, the reason this is the case is because you ate 1.5 fourths of the pie. In order to solve these types of problems, you need to make the divisors of the amount of the pie you ate the same. in order to do this, we need to make 8 become 4, to do this we need to divide 8 by 2 which gives us four, remember what you do to the top of the fraction you MUST do to the bottom, which means that we need to divide the bottom by 2 which gives us 1.5.
We could also make the divisor of the fraction that expresses the amount of pie your sister ate 8 instead of making the other divisor 4. In order to do this, we must multiply 4 by 2 to give us 8, remember what we do to the top of the fraction you MUST do to the bottom, so we multiply the bottom by 2 giving us 2/8. You ate 1.5/4 and your sister ate 1/4 or your sister ate 2/8 and you ate 3/8. You ate more of the pie. I hope that this helped you out.

What is an intersection point?

Answers

An intersection point is a point where two lines meet.

A point on a on two lines that are on the same plane that pass through each other
hope this helps

What is the median and mode

Answers

Median is the middle number

60, 60, 65, 70, 70, 85, 90

70 is your median

mode is the number(s) that show up the most
60 and 70 is your mode, since they show up twice (one more than the others)

Range is largest number minus the smallest
90 - 60 = 30, 30 is your range

Mean is all the numbers added together divided by the number of numbers there are
60 + 90 + 65 + 70 + 70 + 85 + 60 = 500
500/7 = 71.42
Mean = 71.42

hope this helps

Simplify 2(6x+21)+14

Answers

12x+56 is the simplified form

(12x+41)+14

Just multiply the 2 into the parenthesis

120% of 33 is what number?

Answers

Change 120% into a decimal using the DP rule. D stands for decimal and P stands for percent. If you are trying to change a percent into a decimal then move the decimal spots two spaces to the right, but if you are changing a decimal into a percent then you move the decimal two spaces to the right. In this case we have to move the decimal two spaces to the left. Imagine in a percent that there is an imaginary decimal on the right of the 0 in 120 so when you move the decimal to the left it will become 1.20. Now multiply 1.20 and 33 which should give you an answer of 39.6 .

The answer is simply 39.6

Can 9/12 be simplified

Answers

yes.

9/12 can be simplified to 3/4

(divide by 3 top & bottom)

hope this helps

Yes they can. When it comes to simplifying fractions, whatever you do to the numerator, you must do to the denominator. With this fraction, we can divide both the top and bottom by 3 to get 3/4. 9/12 is 3/4 in simplest form.

Find 0.001 more than 18.852.

Answers

that answer is 18.853.
because 18.852 + 0.001= 18.853, as you are only adding in the hundredths place.

converting percent into decimals

Answers

To convert a percent to a decimal, you move the the decimal left two places to convert the percent to a decimal. For example, if you were to convert 14% to a decimal, you move the decimal left two places so that 14% converted to a decimal would look something like this: 0.14

Percent means per 100 so 40% 40 per 100, or simply 40/100

When we divide 40 by 100 we get 0.4 which is a decimal number.

to convert from percent to decimal you have to divide by 100, and then remove the % sign.

Suppose △PKN≅△BGH△PKN≅△BGH. Which other congruency statements are correct? Select each correct answer. △NKP≅△HBG△NKP≅△HBG △KPN≅△BHG△KPN≅△BHG △NPK≅△HBG△NPK≅△HBG △KNP≅△GHB

Answers

Answer:

△NPK≅△HBG; and △KNP≅△GHB

Explanation:

Using the given congruence statement, we can determine corresponding pieces of the triangles:

P corresponds to B; K corresponds to G; and N corresponds to H.

This means that △NKP≅△HGB, not HBG.

△KPN≅△GBH, not BHG.

△NPK≅△HBG; this is correct.

△KNP≅△GHB; this is correct.

Answer: k12 answers have a nice day!!!

Step-by-step explanation:

How do you solve this using the elimination method of systems of equations?

Answers

Easiest approach: Mult. the first eqn by 2; this results in 10x - 2y = 12. To this new equation, add the second equation:

10x - 2y = 12
5x + 2y = 3
-------------------
15x = 15, so x = 1. Subst. 1 for x in either of the given equations, and then find y from the resulting equation.

Write your solution in the form (1, ? ).

Answer: 5x - y= 6 ×5 ------- equation 1 5x+ 2y=3 ×5-------- equation 2 -------------

25x - 5y= 30

- 25x + 10y=15

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

-5y-(+10y)=30-15

-5y-10y =15

-15y= 15

divide both sides by -15

y= -1

finding the value of x by subs. y=-1

into equation 1

5x-(-1)=6

5x +1=6

5x=6-1

5x=5

divide both sides by 5

x= 1

what is 20x34 equal.

Answers

The answer to 20x34 is 680

680 is your answer that you need

an elevator traveled from the 10th floor to the 2nd floor in 6 seconds. what was the rate of the elevator in floors per second

Answers

Since it went 8 floors in 6 seconds you divide. 8/6 is 1.333 or 1 1/3 floors per second. Hope this helps.

The elevator travels 4/3 levels per second, or floors per second.

What is ratio?

The ratio can be defined as the number that can be used to represent one quantity as a percentage of another. Only when the two numbers in a ratio have the same unit can they be compared. Ratios are used to compare two objects.

Given, an elevator traveled from the 10th floor to the 2nd floor in 6 seconds.

Elevator cover total distance = 10 -2 = 8 floors

since it took elevator 6 seconds

thus

elevator travels in 6 seconds = 8 floor

elevator travels in 1 seconds = 8/6 =4/3 floor

Therefore, the rate of the elevator in floors per second is 4/3 floor per seconds

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Nathan and Sydney start out together on a bike trail that is 24 miles long. Nathan bikes at 88 miles per hour while Sydney bikes at 12 miles per hour. Which statement is true?

Answers

sydney is true because the bike trail is no longer than 24 miles

Sydney is true because 88 miles is longer than 24 miles

create a slope that will be parallel to the slope provided which is 5/9 what is the parallel slope?

Answers

parallel lines have the same slope so 5/9 would be the answer

Answer:

The parallel slope would be 5/9

Step-by-step explanation:

Parallel lines have the same slope. So, if the original line had a slope of 5/9, the new line would also have that slope.

Which is an inccorect rounding of 53.864

Answers

from your options the answer is 50.

8/9, 85%, 0.92 least to greatest

Answers

What that guy said it right

How many three-letter "words" can be made from 5 letters "FGHIJ" if repetition of letters

Answers

So basically you just want to say:

5 choices, with five choices stemming from that, with five more choices stemming from that.

(Drawing a tree would show that well)

Or,

5 * 5 * 5

Which is,

25 * 5

Or 125.

So 125 three letter words can be made from the letter FGHIJ

125 three-letter "words" can be made from 5 letters "FGHIJ" if repetition of letters.

What is Combination?

A combination is a selection of all or part of a set of objects, without regard to the order in which objects are selected.

We need to find three-letter "words" can be made from 5 letters "FGHIJ" if repetition of letters.

The given letters are FGHIJ.

As we need to find three letter words.

This can be done by using 5³ as the repetitions are allowed.

Five power cube number of three words can be formed.

5×5×5

One hundred twenty five.

125

Hence, 125 three-letter "words" can be made from 5 letters "FGHIJ" if repetition of letters.

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the price of a fan is 15 dollar the price is 27% lower than last week

Answers

$55.56 - $40.56 = $15
100% 73% 27%
^ ^
last week this week

25% of all the seats in the auditorium is 37 shares the total number of seats in the auditorium is

Answers

The number of seats in the first row is 18;
The number of seats in the second row is 18+2=20;
The number of seats in the third row is 18+2*2=22;
The number of seats in the fourth row is 18+3*2=24;
...
The number of seats in the nth row is 18+(n-1)*2.

Notice that if we knew the total number of rows we would be able to sum the number of seats in each row and get the total number of seats.

(1) The number of rows of seats in the auditorium is 27. Sufficient.
(2) The number of seats in the last row is 70 --> 18+(n-1)*2=70, where n is the number of rows. We can get n. Sufficient.

Answer: D.

Melissa’s family is driving out of state to her grandmother’s house. They know that it takes 20 gallons of gas to get there, and the cost of three gallons of gasoline is $10.50. How much should the family budget to make the one-way trip? $20.00

Answers

3 gallons cost 10.50

20 gallons / 3 = 6 2/3

6 2/3 * 10.50 = 70

they need $70 for the trip

it total revenue is $3000, cost of goods is $1500, and total selling expenses is $500 what is the Profit for the business

Answers

$3000- $1500= ?... ?- $500= your answer
Hope this helped if you need more help let me know and i will explain more

Hello!

To find your answer, you simply need to subtract:

3000 - 1500 = 1500

1500 - 500 = 1000

So, the profit for the business is $1000.

I hope this helped you! :)

Solve the following equation: -3 = 1 3/5 + m

Answers

-23/5 is your answer

The answer to this equation is -23/5

Doug dives from a platform that is 5 meters above water. His dive takes him 2.6 meters below the surface of the water. How far does Doug's dive take him?

Answers

The total distance Doug dives from the platform to the under the water is 7.6 meters.

What is a numerical expression?

A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.

Given, Doug dives from a platform that is 5 meters above the water.

His dive takes him 2.6 meters below the surface of the water.

∴ To find the total distance Doug dived we have to sum the height of the platform above water and the distance which he dived below the water,

= (5 + 2.6) meters.

= 7.6 meters.

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is the product of a fraction less than 1 and a whole number greater than or less than the whole number? explain

Answers

It depends, if the numerator is greater than the denominator, the product will be greater. If not, the product will be less than the whole number. If the fraction is equal to one,(ex. 2/2,50/50,-2/-2), then it would be equal.

Multiplying a fraction less than 1 with a whole number produces a result that is less than the original whole number because you are taking a portion of it.

The product of a fraction less than 1 and a whole number is always less than the original whole number. To understand why, consider the fraction as a part of the whole. If you multiply the whole by a part less than the whole (a fraction less than 1), you're essentially taking only a portion of it, which must logically be smaller than the whole itself.

Do you think a bar model would be a good model for converting miles to feet

Answers

Yes, in my opinion I think a bar model would be a good model for converting miles to feet. It is simple and easy to understand

I think that a bar model would be a good model for converting miles to feet. In making a bar model, it would be easier to spot on the comparison of both equivalent values of miles and feet. But on the other hand, this also has limitations. This is only good for conversions with fixed, and whole numbers.
hope this helped

A race car can travel 615 miles in 3 hour.A small jet can travel 575 miles in 2.5 hours.write and solve an equation to determine if the car or jet travels at a faster rate

Answers

car:
615/3= 205
the car travels 205 miles per hour.
jet:
575/2.5= 230
the jet travels 230 miles per hour.
the jet travels at a faster speed.

Final answer:

To compare the rates of travel of a race car and a small jet, divide the distance traveled by the time taken for each. The small jet travels at a faster rate than the race car.

Explanation:

To determine which travels at a faster rate, we need to compare their rates of travel. The rate of travel is found by dividing the distance traveled by the time taken. Let's denote the rate of the race car as 'r1' and the rate of the small jet as 'r2'.

For the race car, we have r1 = 615 miles / 3 hours = 205 miles per hour.

For the small jet, we have r2 = 575 miles / 2.5 hours = 230 miles per hour.

Comparing the rates, we see that the small jet travels at a faster rate than the race car.

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What is -6 over 0 equal to?

Answers

Is error mean there no option to solve it . It not division by 0

0 is the answer to the question most likey

Simplify the following expression by combining like terms: 2x⋅2x⋅7x

11x

4x+7x

28x3

28x

Answers

The correct answer would be C.

28x^3

Hopefully this Helped!:)

Order the number from least to greatest. 1/2, 0.55, 5/7. TELL ME FAST!!!

Answers

It is the order you have there: 1/2, 0.55, then 5/7

1/2 is also known as 0.5, and 5/7 is 0.71, so we’ll use that.
Think of these numbers without the decimal. 50 is less that 55, and 55 is less than 71.
So, the answer would be: 0.5 (aka 1/2), 0.55, and 0.71 (aka 5/7).

Hope that helped! :)

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