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
xxMikexx [17]
3 years ago
8

Need help ASAP

Mathematics
2 answers:
diamong [38]3 years ago
7 0

Answer:

b. {-9, 3}.

Step-by-step explanation:

x^2 + 6x - 27 = 0

We need 2 numbers whose product is -27 and whose sum is + 6.

These are + 9 and - 3. So the factors are:

(x - 3)(x + 9) = 0

(x - 3) = 0 or (x + 9) = 0

x = 3 or -9.

Zarrin [17]3 years ago
4 0

Answer: option b is the correct answer.

Step-by-step explanation:

The given quadratic equation is expressed as

x^2+6x-27=0

In order to solve the equation by factorization, the first step is to find two numbers such that their sum or difference is 6x and their product is

- 27x^2. The two numbers are 9x and - 3x. Therefore,

x^2 + 9x - 3x - 27 = 0

x(x + 9) - 3(x + 9) = 0

x - 3 = 0 or x + 9 = 0

x = 3 or x = - 9

You might be interested in
A quantity with an initial value of 120 decays exponentially at a rate of 9.5% every 7
blondinia [14]

Answer:

39.46

Step-by-step explanation:

6 0
2 years ago
Which angles are neither obtuse angles nor acute angles?
mr Goodwill [35]

Answer:

Acute angles are less than 90

obtuse is more than 90

right angles are exactly 90

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
I need help with 2 of these math question
fgiga [73]

Answer:

10

Step-by-step explanation:

20/2=10

10+10=20

17

5 0
2 years ago
Read 2 more answers
Students conducted a survey to see which cola was preferred most. People preferred cola A to cola B by a ratio of 9:7. If 108 pe
tigry1 [53]

Answer:

c:84

Step-by-step explanation:

set your equasion to 9/7 = 108/x .solve the equasion and you get 84 for x

4 0
3 years ago
Each angle of an equiangular triangle is what degree angle
Alexandra [31]
An equiangular triangle adds up to 180 so divide that by 3, which is the number of sides, and you get, 60, therefore, each side is 60<span>° angle.</span>
5 0
3 years ago
Other questions:
  • Dan has 4 over 5 cup of ice cream. How many 1 over 8-cup servings are in 4 over 5 cup of ice cream?
    7·2 answers
  • Suppose that there are 11 employees in an office. The boss needs to select 5 of the employees to
    7·1 answer
  • Inverse cosine of square root of 3 over 2?<br> cos-1(square root of 3/2)
    9·1 answer
  • 15 POINTS!!!! BRAINLIEST FOR THE FIRST ANSWER!!! Solve 3-x/2≤18
    15·1 answer
  • 3. Find the radius of a circle with a circumference<br>of 106.81 centimeters.<br>​
    14·2 answers
  • Help me on this math question please
    13·2 answers
  • Anyone know how to do this??
    13·1 answer
  • Hey besties help me
    12·2 answers
  • Find the mode of the data
    10·2 answers
  • Find y.<br>Help me please:))​
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!