Explain what mistake is made in the following false statement: 3(x+4)(x+7)=(3x+12)(3x+21)

Answers

Answer 1

Answer: The 3x+21

Step-by-step explanation:

3(x=4) = (3x+12) The (3x+12) is being multiplied by (x+7) and the 3 should only be distributed to (x+4) which meant the the equation when simplified should have become (3x=12)(x+7).


Related Questions

Find the midpoint between each pair of points.
(7,-2) and (-4,2)

Answers

Answer:

Midpoint: [tex](\frac{3}{2} ,0 )[/tex]

Step-by-step explanation:

Midpoint Formula: [tex](\frac{x_1+x_2}{2} ,\frac{y_1+y_2}{2} )[/tex]

Step 1: Define variables

x₁ = 7

x₂ = -4

y₁ = -2

y₂ = 2

Step 2: Plug into midpoint formula

[tex](\frac{7-4}{2} ,\frac{-2+2}{2} )[/tex]

Step 3: Simplify/Evaluate

[tex](\frac{3}{2} ,\frac{0}{2} )[/tex]

[tex](\frac{3}{2} ,0 )[/tex]

PLEASE HELP!!! Write a quadratic equation if its roots are: [tex]\sqrt{3} -1/2[/tex] and [tex]\sqrt{3} +1/2[/tex]

Answers

Answer:

x²- √3 x +1/2

Step-by-step explanation:

To write a quadratic equation with roots only:

x² -(sum of the roots)x+(product of roots)

x²-((√3-1/2)+(√3+1/2)x + ((√3-1/2)(√3+1/2)

x² -(2√3)/2 + ( 9-1)/4

x²- √3 x +1/2

Can someone please please pleaseee helppp

Answers

Step-by-step explanation:

Hey there!!!

Here,

The point is, (-3,1).

Using one point formula.

(y-1)= m(x+3)....1st equation.

It has said that it is also perpendicular to the line y = 1/3x + 2 .......2nd equation.

Now, the equation with y = mx + c.

We get slope (m2) = 1/3.

Now,

As per the condition of perpendicular lines,

[tex]m1 \: \times m2 = - 1[/tex]

[tex]m1 \times \frac{1}{3} = - 1[/tex]

Simplifying them we get,

m1 = -3.

Therefore the slope is -3.

Hope it helps...

Juan purchased 16 lemons and used 5 on the first day of making lemonade. On the second day, he purchased 12 lemons and used 11. Juan wrote this expression to find how many lemons he should have left.

(16 – 5) + (12 – 11)

Answers

You do what is in the parentheses first and then add them together.
So:
11+1=12

Answer:

Juan purchased 16 lemons and used 5 on the first day of making lemonade. On the second day, he purchased 12 lemons and used 11. Juan wrote this expression to find how many lemons he should have left.

Step-by-step explanation:

11+1=12

absolute value of 100​

Answers

Answer:

100

Step-by-step explanation:

Think of the absolute of a number as the distance from that number to zero on the number line. The distance from 100 to 0 on the number line is 100, so absolute value of 100 is 100. Notice that -100 is also at a distance of 100 from zero, so |-100| = 100.

|100| = 100

(7x7x7x7x7x7x7)-3x-3x-3

Answers

Answer:

823516

Step-by-step explanation:

hope this helps

Answer:

7^7 times -3^3, or -22235661

Step-by-step explanation:

solve for T

10t = -50​

Answers

Answer: t=-5

Step-by-step explanation:

if 10t=-50, you have to solve for the equation. to solve, you have to get the variable by itself. to get the variable by itself, you have to divide both sides by 10. 10t/10=-50/10. t=-5

Mr. Bins sold 1/2 of his farm to Mr. Frost and 100 acres to Mr. Slate. He now has 1/5 of his original farm land. How big was his farm originally? How much land does he have now?

Answers

Answer:

Step-by-step explanation:

1/2

Using words, express x< 7

Answers

Answer:

X is less than seven

Step-by-step explanation:

"<" means less than, and shows that x is less than 7

2) I have two consecutive numbers. The difference of 4 times the first and 3 times the second number is negative 25. What is the value of your two numbers?​

Answers

Answer:

31

Step-by-step explanation:

Answer:

Step-by-step explanation

The anwser should be 30 or 37 because 4 times 3 is 12 then plus 25 is 37

Mercedes takes out a loan for $ 10 , 000 at a simple interest rate of 3.5 % to be paid back in 42 monthly installments. What is the amount of the monthly payments?

Answers

Answer:

The amount of monthly installments is $267.30

Step-by-step explanation:

Here, we are interested in calculating the amount of the monthly is installments.

To get the amount of the installments, we need to calculate the sum of the interest and the amount borrowed.

Mathematically,

Simple interest = PRT/100

from the question;

P = principal which is the amount borrowed = $10,000

R = rate = 3.5%

T = time = 42 months = 42/12 = 3.5 years

Substitute these values into the formula for simple interest;

We have ;

S.I = (10,000 * 3.5 * 3.5)/100 = $1,225

So the total amount to

payback = interest + principal = 1225 + 10,000 = 11,225

So the amount of installments will be ;

The amount to payback/number of months

Mathematically that would be ; 11,225/42 = $267.26 which is approximately $267.30 per month

Solve using the order of Operations:
- 5- (- 4 + 2)2
O -1
0-9
O 9
O 1
Math

Answers

Hey there! I'm happy to help!

Order of operations is PEMDAS. Parentheses comes first.

(-4+2)=-2

So, now we have -5-(-2)2

The next available option is multiplication.

-5-(-4)

Now we do addition and subtraction.

-5+4

-1.

Have a wonderful day! :D

the correct simplified form of 2y5+4y5−3y3−5y3

Answers

Hey there! I'm happy to help!

Numbers with the same variable and exponent are like terms and can be simplified.

[tex]2y^5+4y^5=6y^5[/tex]   (variable is y, exponent is 5)

[tex]-3y^3-5y^3=-8y^3[/tex] (variable is y, exponent is 3)

So, our final simplified form is [tex]6y^5-8y^3[/tex].

Have a wonderful day! :D

answerers about Caca Andika from Indonesia

helppp first to answer get brainlist​

Answers

Answer: c

Step-by-step explanation:

Graph the system below and write its solution. Y=1/2x-1
-2x+y=4
You can answer no solution or infinitely many

Answers

Answer:

x = -3.3333333

y = -2.666666

Step-by-step explanation:

y = 1/2 x - 1

y = 2x + 4 The second equation has the 2x moved to the right side. The y's must be equal so equation the two equations.

1/2x -1 = 2x + 4             Subtract 1/2x from both sides.

-1 = 2x - 1/2 x + 4          Combine

-1 = 1.5x + 4                   Subtract 4 from both sides

-1 - 4 = 1.5x

- 5 = 1.5x                       Divide both sides by 1.5

-5/1.5 = x

x = - 3.333333

Now put x = - 3.333333 into either one of the two given equations. The first one will require one less step, but it does not matter.

y = 1/2 (- 3.3333333) - 1

y = - 1.6666666 - 1

y = -2.6666666

Drag the tiles to the right places


PLEASE HELPPP FASSTTTTTTTT

I WILL MARK YOU AS THE BRAINLYEST IF I GET IT RIGHT JUST HELPPPPP

Answers

Answers:
(4^2)^4 = 4^-8
(4^2)^-1 = 4^-2
4^2 x 4^6 = 4^8
4^5 x 4^-3 = 4^2

how to solve the value for x

Answers

Answer:

x>6;x>2 or just x>2 if u combine intervals

Step-by-step explanation:

x^2-8x+12>0

factor: (x-6)(x-2)>0

split: x-6>0; x-2>0

add 6 and 2: x>6;x>2

combine intervals: x>2

5w +3w=40 simplify your answer as much as possible

Answers

Answer:

w=5

Step-by-step explanation:

8w=40

/8    /8

w=5

5w +3w= 40
8w= 40
40/8= 5

show all steps for 4.7x+90=5.6x+2.1x

Answers

Answer:

x=30

Step-by-step explanation:

4.7x+90=5.6x+2.1x4.7x+90=7.7xSubtract 4.7 on both sides 3x=90x=30

i need help please and thanks a lot ​

Answers

Step-by-step explanation:

[tex] \huge \: K = \frac{1}{2} m {v}^{2} \\ \\ \huge \: 2 K =m {v}^{2} \\ \\ \huge \purple{ \boxed{m = \frac{2 K}{ {v}^{2} } }}[/tex]

what is the answer to -5x-x

Answers

Answer:

- 6x

Step-by-step explanation:

Step 1:

- 5x - x

Answer:

- 6x

Hope This Helps :)

- 6x

Step 1:   - 5x - x

Answer:  - 6x

f(x) = 2x – 5
g(x) = 4x – 1
Find f (g(x)).
help please !!

Answers

Answer:

Hey there!

g(x) is 4x-1

f(g(x) is f(4x-1)

f(4x-1)=2(4x-1)-5

f(4x-1)=8x-2-5

f(4x-1)=8x-7

The answer is 8x-7

Let me know if this helps :)

Find the distance between (5,3)and(9,7)

Answers

Answer:

wouldnt it be 4,4?

Step-by-step explanation:

Answer:

Step-by-step explanation:

Calculate the distance between two points by filling in the x and y values of both coordinates. How do you find the distance between two points? Distance Formula : Example: For two points, (3,2) and (15, 10) the distance is calculated as: Distance = 14.42 (rounded to the nearest 100th)

2.9 x 10^5 + 8.7 x 10^5

Answers

Answer:

So this is scientific notation what you do is

2.9x10^5 so you put however many zeros the is powered to 10. See there is a 5 It has to be behind or in front of the decimal you might be saying how do you know if its behind or in front well negative is in front and positive is behind .

290,000 there was a number already behind the decimal so there you go 5 number behind the decimal.  

Same for the second one

290,000  870,000 is your answers so now you add hem together

1,160,000 is your final answer

Step-by-step explanation:

What is the missing statement and the missing reason in step 5? A 2-column table with 7 rows. Column 1 is labeled statements with the entries measure of angle A D E = 60 degrees and measure of angle C D F = (3 x + 15) degrees, angle A D E and angle C D F are vertical angles, angle A D E is-congruent-to angle C D F, measure of angle A D E = measure of angle C D F, question mark, 45 = 3 x, and, 15 = x. Column 2 is labeled reasons with the entries given, definition of vertical angles, vertical angles congruent, definition of congruency, question mark, subtractive property, division property. Statement: 60 = 3x + 15; Reason: substitution Statement: x = 15; Reason: subtraction property of equality Statement: 60 = 3x + 15; Reason: transitive property Statement: x = 15; Reason: subtraction and division properties of equality

Answers

Answer:

Statement: 60 = 3x + 15; Reason: substitution

(aka A)

Step-by-step explanation:

The missing statement and the missing reason in step 5 is;

Statement: 60 = 3x + 15;   Reason: substitution

Here,

We have to find the missing statement and missing reason.

What is Substitution method?

Substitution method is algebraic method to solve the linear equations .

Now,

Column 1 and column 2 are labeled here as;

Angle A D E = 60 degrees                ( entries given)

Angle C D F = (3 x + 15) degrees

Angle A D E and Angle C D F are vertical angles.  (definition of vertical angles)

Angle A D E is-congruent-to Angle C D F.  ( definition of congruency)

Measure of angle A D E = Measure of angle C D F.

 60 = 3x + 15      ( substitution )

⇒  45 = 3 x            ( subtractive property )

⇒  15 = x             ( division property )

Hence, The missing statement and the missing reason in step 5 is;

Statement: 60 = 3x + 15;   Reason: substitution

Learn more about the substitution method visit:

https://brainly.com/question/26094713

#SPJ2

find the value of x if h is the midpoint of gj, gj equals 4x-6, and gh=27 - huryyyyyyy please.

Answers

Answer: X=15

Step-by-step explanation:

GH+HJ= GJ

27+27=4x-6

54=4x-6

60=4x

15=x

can a rational number + a rational number = irrational number

Answers

Answer:

no

Step-by-step explanation:

its just like a positive number + a positive number cannot equil a negitive number.


A. 3
B. 4
C. 130
D. 35

Answers

Answer:

a) 3

Step-by-step explanation:

3+10= 13

hope this helped :)

Answer:

A. 3

Step-by-step explanation:

? + 10 = 13

? = 13 - 10

? = 3

NEED HELP ASAP SHOW WORK PLSSSS

Answers

Answer:

Hey there!

6x+1+3=8x+1

6x+4=8x+1

6x+3=8x

3=2x

x=1.5

6(1.5)+1

10

SR is 10 units long.

Let me know if this helps :)

Solve the polynomial by graphing. Round to the nearest tenth.
3x^5-8x^4+2x^3+5x^2-2x+1=0

Answers

d trust me edge 2020
Other Questions
The Reciprocity Treaty of 1854 removed tariffs on trade between the U.S. and _____. British colonies Canada New Orleans France is afraid a preposition Identify the five regions that make up the Coastal Plains region of Texas. A basketball player has a 60% accuracy rate for making free throws. During practice, this player fails to make a free throw three times in a row, but is finally successful on the fourth attempt. P (X equals k )equals (1 minus p )to the power of k minus 1 end exponent p Using the geometric distribution formula, what is the probability of this player successfully making a free throw on the fourth attempt Jeremiah just received a camera for his birthday gift. It is used but was very well taken care of and looks almost new. What are some of the basic first steps that Jeremiah should take to get his camera set up? Describe and explain the basic features and functions Jeremiah should set up and the procedures for doing so. Derrick crawls 4 feet south, and then turns east and crawls 6 feet.What distance did he cover?What was his displacement? What decimal number is illustrated? Why do we care about Amerigo Vespucci?What does Magellan eventually do? the government formed by articles of confederation is described as a the residents of the state of texas pay an 8.25% sales tax on most purchases.which decimal represents the texas state sales tax?A) 0.825B)0.00825C)0.0825D)8.250 help me please this is due today!!!!!!!!!!!!!!1111 :( Bone does not amplify sound during speaking is _____________________ Cuales son los datos similares y cules los diferentes de una misma noticia difundida por diferentes medios Why did protestant sea captains make raid on spanish shipping What is the slope of the line that passes through the points (-2,8) and (-22,8)? Write your answer in simplest from a small villageQuestion 3 (1 point)What first motivated Christopher Columbus to try to travel to Asia?a He wanted to find gold, spices, and new trade routesB He wanted to find new lands for Spanish people to live as Spain had become overcrowdedC He wanted to learn about non-European people and their culture What continent do you find at 20'S , 120'E What SI units are used for measuring the following quantities? For derived units, express your answers in terms of the six fundamental units. please help :( volume, density, and energy 7. A square chunk of plastic has a length of 5 cm, width of 5 cm and height of 5 cm. It has a mass of 200 g. What is its density? 1. According to the above map, which of the following economic commodities did the Englishcolonies contribute to the triangular trade pattern that developed in the mercantilist systembetween Europe, Africa and the Americas? a. manufactured goodsb. slave laborc. natural resourcesd. weapons