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
devlian [24]
4 years ago
10

Rewrite the equation by completing the square. x^2 + 2x – 48 = 0

Mathematics
1 answer:
slamgirl [31]4 years ago
3 0

Answer:

(x+1)^2 = 49

x = 6                 x = -8

Step-by-step explanation:

x^2 + 2x – 48 = 0

Add 48 to each side

x^2 + 2x =48

Take the coefficient of x

2

Divide by 2

2/2=1

Square it

1^2 =1

x^2 + 2x +1=48+1

x^2 +2x+1 = 49

(x+1)^2 = 49

Take the square root of each side

sqrt((x+1)^2) =±sqrt( 49)

x+1 = ±7

Subtract 1 from each side

x+1-1 = -1  ±7

x = -1+7          x = -1 -7

x = 6                 x = -8

You might be interested in
A drawer contains 4 orange colored pencils and
sergij07 [2.7K]

Answer:

4/9 or four out of nine

Step-by-step explanation:

There are nine pencils total, and 4 of them are orange

6 0
2 years ago
Write the slope-intercept form of the given line. Include your work in your final answer.
Degger [83]

Answer:

y=1x+-1

Step-by-step explanation:

y=mx+b

m=slope which is 1/1 because it is rise over run (rising 1, running 1)

b=y-intercept form which is -1 because that is where the line meets the y axis

8 0
3 years ago
Converting repeating decimals to a fraction
Goshia [24]

Step-by-step explanation:

Step 1:

Let x equal the repeating decimal you are trying to convert to a fraction.

Step 2:

Examine the repeating decimal to find the repeating digit(s).

Step 3:

Place the repeating digit(s) to the left of the decimal point.

Step 4:

Place the repeating digit(s) to the right of the decimal point.

Step 5:

Using the two equations you found in step 3 and step 4, subtract the left sides of the two equations. Then, subtract the right sides of the two equations

As you subtract, just make sure that the difference is positive for both sides.

3 0
4 years ago
The cost to mall a package is $5 for the first 2 pounds and 40 cents for each additional ounce. Which of the following functions
erica [24]

Answer:

Step-by-step explanation:

5 times 2 equales 10 divided by 40 eqauls 4 times 2 equals 8

5 0
3 years ago
.
allsm [11]

Answer:

wow.

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • Give an expression that generates all angles coterminal with each angle. Let n represent any interger?
    15·1 answer
  • A meteorologist used the expression below to describe how the temperature changed. –5 + (–4) Which statement could describe how
    10·2 answers
  • an item has increased 15%. a person can buy the item for a 25% employee discount. The employee pays 172.50. What was the price l
    9·1 answer
  • OOI ANSWER THIS RQ~~~~~
    10·1 answer
  • What is the value of x?
    15·1 answer
  • 1. Which figure has reflection symmetry?
    11·2 answers
  • Round 34 to the nearest 10
    10·2 answers
  • Which of the following are properties of a perfect square trinomial? Select all that apply.. A.Neither of the perfect squares ca
    6·2 answers
  • Help first one gets brainllest
    10·2 answers
  • Need help please due in 1 hour and 30 mins
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!