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
tino4ka555 [31]
3 years ago
14

X^2 + 6x - 18 solve for x​

Mathematics
2 answers:
Simora [160]3 years ago
4 0

Answer:

x = - 3  ± √27 or if you want it in decimal form correct to  nearest hundredth:

x = -8.20, 2.20.

Step-by-step explanation:

x^2 + 6x - 18 = 0

this will not factor so we use completing the square:

x^2 + 6x = (x + 3)^2 - 9 so:

(x + 3)^2 - 9 - 18 = 0

(x + 3)^2 = 27

x+ 3 = ±√27

x = - 3  ± √27

Roman55 [17]3 years ago
4 0
The answer :X= 8.20
You might be interested in
Which phrase best describes the translation from the graph y = 6x² to the graph of y = 6(x + 1)²?
just olya [345]
1 unit to the left
Check the table I attached

4 0
2 years ago
Read 2 more answers
A baker is using a cookie recipe that calls for 2 1/4 cups of flower to yield 36 cookies. How many flour will the baker need to
Kryger [21]
90/36 is 2.5, so the Baker needs to make 2.5 batches of cookies

2.5 batches of cookies x 2.25 cups of flour

is 5.625 cups of flour

which is 5 5/8 cups of flour
6 0
3 years ago
What shape is produced when slicing a hexagonal prism perpendicular to the base?
Feliz [49]

Answer:

hexagonal shape

Step-by-step explanation:

i am small child from American

sorry for answer

I'm 10 year old

I am born in Nepal

but develop in America

5 0
3 years ago
State the value of the discriminant of -6x^2 +2x + 3 = 0
Dmitry [639]

Answer:

76

Step-by-step explanation:

recall that for a quadratic equation in the form

ax² + bx + c = 0, the discriminant is given by

discriminant, D = b²- 4ac

we are given the following:

-6x² + 2x + 3 = 0,

comparing this with the general equation above, it is clear that,

a = -6, b = 2 and c = 3,

substituting these into our equation for discriminant:

D = b²- 4ac

= 2² - 4(-6)(3)

= 4 + 72

= 76

4 0
3 years ago
20) Use the distributive property to factor the expression. 10xz − 20yz A) z(10x − 20y) B) 10(xz − 2yz) C) 10z(x − 2y) D) xyz(10
vekshin1

Answer:

The correct answer is C) 10z(x − 2y)

Step-by-step explanation:

To find this, we look for the greatest common factor of those two numbers. Each can be divided by 10 and each have a z. So we divide each term by 10z and put that on the outside of the parenthesis.

5 0
3 years ago
Other questions:
  • The area of the larger circle is 36 find the circumference of one of the smaller circles
    5·1 answer
  • The following equation of a quadratic function is given in standard form. f(x) = x²- 2x + 2 Determine the vertex for each quadra
    10·1 answer
  • The polynomial of degree 3, P(x), has a root of. multiplicity 2 at x=1 and a roof of multiplicity 1 at x= -3. the y- intercept i
    6·2 answers
  • 6-^3<br> ------<br> 6-^4<br><br><br> A) 6-7 <br><br> B) 6-1 <br> C) 61 <br> D) 612
    7·2 answers
  • In Cecilia’s CD collection, 1/5 of her Jazz CDs represents 1/10 of all her CDs. What is the ratio of her Jazz CDs to her non-Jaz
    7·1 answer
  • Don't stress anymore I'm here to help in online mathematics classes I have a doctorate degree in maths​
    10·2 answers
  • The triangle on the grid will be translated two units left.
    9·2 answers
  • A rectangular portrait has an area of 40 square feet it's perimeter is 26 feet what are the dimensions of the portrait?
    5·1 answer
  • Work out the number of students at the school
    9·1 answer
  • I need help the find the definition to these <br> PleaseHELP!!!!!
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!