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
Amiraneli [1.4K]
3 years ago
7

If using the method of completing the square to solve the quadratic equation

Mathematics
2 answers:
lara [203]3 years ago
6 0

Answer:

x² + 7x + 10 = 0

Subtract 10 from both sides

x² + 7x = -10

Use half the x coefficent (7/2) as the complete the square term

(x + 7/2)² = -10 + (7/2)²

   note: the number added to "complete the square" is (7/2)² = 49/4

(x + 7/2)² = -10 + 49/4

(x + 7/2)² = 9/4

Take the square root of both sides

x + 7/2 = ±3/2

Subtract 7/2 from both sides

x = -7/2 ± 3/2

x = {-5, -2}

Katena32 [7]3 years ago
6 0
X2 cause it makes sense
You might be interested in
What is the actual area, in square meters of this field?
Doss [256]
Hey!!

here is your answer >>>

The formula for the area of the triangle is

1/2 × base × height

Base = 7

height = 5

1/2 × 7 × 5

1/2 × 35

area = 17.5 m^2

Hope my answer helps!
3 0
3 years ago
Read 2 more answers
My friend and I need help: a/4 - 5/6 = 1/2
aev [14]
A= 16/3
...................
4 0
3 years ago
Use the functions f(x) = 4x − 5 and g(x) = 3x + 9 to complete the function operations listed below. Part A: Find (f + g)(x). Sho
Bingel [31]
Part a)
16 x - 10
f + g = 5x − 12 + 11x + 2= 16x -10
Part b)
f * g = (5x − 12)(11x + 2) = 55x^2 - 132x + 10x - 24 =  55 x^2  - 122 x - 24
<span>Part c) </span>
<span>f(g(x)) = f( 11x + 2) = 5(11x +2) - 12 = 55x + 10 - 12 = 55x-2

</span>
7 0
3 years ago
R=14 pie=3.14 round to the nearest hundreths
Leni [432]

Answer:

Many situations will call for you to round decimals to the nearest tenth to make the number easier to work with. Once you understand how to find the tenths and hundredths place, the process is very similar to rounding whole numbers.

Step-by-step explanation:

Many situations will call for you to round decimals to the nearest tenth to make the number easier to work with. Once you understand how to find the tenths and hundredths place, the process is very similar to rounding whole numbers.

5 0
3 years ago
Read 2 more answers
At noon, the minute and the hour hands of a clock overlap. In how long will they again overlap?
stich3 [128]

Answer:

1 hour and 5 minutes

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • Casey is deciding which of two landscapers to hire. Each landscaper charges an hourly rate plus a fee for each job.
    14·2 answers
  • The median number of students in each music class is 19 people. 16,__,24,17,20,21 What should be the number in the blank?
    6·1 answer
  • 6 less than twice a number is 12
    10·2 answers
  • ANSWER GETS BRAINLIEST AND 50 POINTS
    5·2 answers
  • Please help!!!!!!!!
    9·1 answer
  • Here it is, please help me!!!!
    11·1 answer
  • Help...........Me.........Please......
    11·2 answers
  • I need help with this prom now please and thank youl
    5·1 answer
  • WHAT IS THE ANSWER OF A VOLUME OF A CYLINDER WITH A DIAMETER OF 6CM AND HEIGHT OF 12CM
    9·1 answer
  • The area of a triangle is 24 square inches. What is the height of the triangle if the base length is 4 inches?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!