1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Kaylis [27]
3 years ago
7

A student solved 6x+4=2(x−8) in four steps as shown:

Mathematics
1 answer:
mr_godi [17]3 years ago
7 0
The first thing you should do is solve the equation yourself.

1) Distribute the 2.  
6x + 4 = 2x – 16

2) Next, you'll want to get the x's on one side. So add -2x to both sides.
6x + 4 + -2x = 2x + -2x - 16
4x + 4 = -16

3) Now subtract 4 from both sides
4x + 4 – 4 = -16 – 4
4x = -12

4) Finally, divide both sides by 4
4x/4 = -12/4
x = –3

To solve this problem all you need to do is look back out you work, and figure out the correct solution. The answer the question is The student made an error in Step 1.

You might be interested in
How many times of Rs 1,500 is the value including 15% VAT on Rs 15,000?​
GarryVolchara [31]

\huge\underline\green{✏ANSWER}

<u>Sorry</u><u> </u><u>if</u><u> </u><u>it's</u><u> </u><u>blur</u>

<u>#BrainliestBunch</u>

6 0
3 years ago
Rectangle A has length 12 and width 8. Rectangle B has length 15 and width 10. Rectangle C has length 30 and width 15.
never [62]

Vicki: 10 + 10 + 20 = 40

Johnny: 10 + 10 + 30 = 50

50 - 40 = 10 birds

5 0
3 years ago
MAT 171
steposvetlana [31]

Using the Factor Theorem, the polynomials are given as follows:

1. P(x) = x^5 + 2x^4 - 7x^3 + x^2

2. P(x) = 0.8(x^4 - 4x^3 - 16x^2 + 64x)

3. P(x) = -0.1(x³ - 4x² - 3x + 18)

<h3>What is the Factor Theorem?</h3>

The Factor Theorem states that a polynomial function with roots x_1, x_2, \codts, x_n is given by:

f(x) = a(x - x_1)(x - x_2) \cdots (x - x_n)

In which a is the leading coefficient.

Item a:

The parameters are:

a = 1, x_1 = x_2 = 1, x_3 = x_4 = 0, x_5 = -4

Hence the equation is:

P(x) = (x - 1)²x²(x + 4)

P(x) = (x² - 2x + 1)(x + 4)x²

P(x) = (x³ + 2x² - 7x + 1)x²

P(x) = x^5 + 2x^4 - 7x^3 + x^2

Item b:

The roots are:

x_1 = x_2 = 4, x_3 = 0, x_4 = -4

Hence:

P(x) = a(x - 4)²x(x + 4)

P(x) = a(x² - 16)x(x - 4)

P(x) = a(x³ - 16x)(x - 4)

P(x) = a(x^4 - 4x^3 - 16x^2 + 64x)

It passes through the point x = 5, P(x) = 36, hence:

45a = 36.

a = 4/5

a = 0.8

Hence:

P(x) = 0.8(x^4 - 4x^3 - 16x^2 + 64x)

Item 3:

The roots are:

x_1 = x_2 = 3, x_3 = -2

Hence:

P(x) = a(x - 3)²(x + 2)

P(x) = a(x² - 6x + 9)(x + 2)

P(x) = a(x³ - 4x² - 3x + 18)

For the y-intercept, x = 0, y = -1.8, hence:

18a = -1.8 -> a = -0.1

Thus the function is:

P(x) = -0.1(x³ - 4x² - 3x + 18)

More can be learned about the Factor Theorem at brainly.com/question/24380382

#SPJ1

5 0
2 years ago
A family went out to eat. Below is the number of coen dogs tbat each of the four people ate. Find the mean absolute deviation (m
Alexxandr [17]

Answer:

1.25

Step-by-step explanation:

Give the data:

X : 1 1/2 ___ 0 _____ 4 ______ 2 1/2

Mean absolute deviation (MAD) :

Σ|x - xbar| ÷ n

xbar = Σx/ n

Σx = (1 1/2 + 0 + 4 + 2 1/2) = 8

xbar = 8/4 = 2

|x - xbar| :

|1 1/2 - 2|= 1/2

|0 - 2| = 2

|4 - 2| = 2

|2 1/2 - 2| = 1/2

Therefore,

MAD = (1/2 + 2 + 2 + 1/2) / n

MAD = 5/4

MAD = 1.25

4 0
3 years ago
What is Pi* 457363225452-485092526+2671251971947691
Olegator [25]

Answer:

I don't think it's possible to have an exact answer with this without using a calculator.

Step-by-step explanation:

1. Get a calculator

2. input  Pi* 457363225452-485092526+2671251971947691

3. Press =

4 0
3 years ago
Other questions:
  • What is the answer to 3 times 126
    6·2 answers
  • X/3+9=17 simplify your answer
    7·1 answer
  • Each whole number from 0 to 9 is paired with its opposite. is this a function or not
    14·1 answer
  • The perimeter of a rectangle is 36 cm and it’s area is 80 sq.cm . Find its dimensions
    15·1 answer
  • Kiara saved $30 in March. She saved $17 in May. Then Kiara spent $48 on a keyboard. How much money does Kiara have left?
    11·1 answer
  • Subtract h + 3 from 67 + 1.
    15·1 answer
  • What is the midpoint between points (4,7) and (1,1)?
    12·2 answers
  • Julio says, "If you subtract 15 from my number and multiply the difference by - 7, the result is
    9·1 answer
  • Solve the following:<br><br>a) 3x+4/2 = 9.5<br><br><br>b) 7+2x/3= 5​
    14·1 answer
  • Simplify the expression. 3x - (2x + 4) + 5
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!