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
tankabanditka [31]
3 years ago
10

Solve the following equation by factoring: 9x^2 – 3x – 2 = 0

Mathematics
2 answers:
maks197457 [2]3 years ago
6 0

Answer:

A

Step-by-step explanation:

Given

9x² - 3x - 2 = 0

Consider the factors of the product of the coefficient of the x² term and the constant term which sum to give the coefficient of the x- term.

product = 9 × - 2 = - 18 and sum = - 3

The factors are - 6 and + 3

Use these factors to split the x- term

9x² - 6x + 3x - 2 = 0 ( factor the first/second and third/fourth terms )

3x(3x - 2) + 1(3x - 2) ← factor out (3x - 2) from each term

(3x - 2)(3x + 1) = 0

Equate each factor to zero and solve for x

3x - 2 = 0 ⇒ 3x = 2 ⇒ x = \frac{2}{3}

3x + 1 = 0 ⇒ 3x = - 1 ⇒ x = - \frac{1}{3}

crimeas [40]3 years ago
5 0
The answer is A. X=-1/3 or x=2/3
You might be interested in
In a particular​ year, a total of 44,064 students studied in two of the most popular host countries when traveling abroad. If 83
lorasvet [3.4K]

Answer:

The answer would be 35066 :)

Step-by-step explanation:

(y+5554) + y = 64578

Combine like terms

2y = 64578-5554

2y = 59024

y = 29512

x = 29512 + 5554 = 35066

6 0
3 years ago
15/20÷8/20<br><br>PLSS HELP​
Tom [10]
In decimals its 1.875
5 0
3 years ago
Read 2 more answers
Help with MATH please
evablogger [386]

Answer:

Step-by-step explanation:

4). By applying cosine rule for angle R,

    cos(∠R) = \frac{\text{Adjacent side}}{\text{Hypotenuse}}

    cos(33°) = \frac{x}{19} [Equation]

    x = 19cos(33°)

       = 8.39

5). By applying sine rule,

    cos(20°) = \frac{\text{Opposite side}}{\text{Hypotenuse}}

    cos(20°) = \frac{15}{x} [Equation]

    x = \frac{15}{\text{cos}20}

    x = 15.96

6). By applying tangent rule,

    tan(40°) = \frac{\text{Opposite side}}{\text{Adjacent side}}

    tan(40°) = \frac{15}{x} [Equation]

     x = \frac{15}{\text{tan}40}

     x = 17.88

5 0
3 years ago
Wrapping paper is on sale at 3 rolls for $4.25.How many rolls can danika buy with $20.00
Rus_ich [418]
Sorry I didn't read that correct!!  If you aren't sure how to do the division, just keep subtracting 4.25 from $20 until you can't anymore!
6 0
3 years ago
Read 2 more answers
Write the equation of a circle that has a radius of 1/2 and a center at (1, -1),
Stels [109]

Answer:

(x-1)^2+(y+1)^2=\frac{1}{4}

Step-by-step explanation:

The equation of a circle with center (h,k) and radius r is given by (x-h)^2+(y-k)^2=r^2.

What we're given:

  • r of 1/2
  • Center at (1, -1)

Substituting given values, we get:

(x-1)^2+(y-(-1))^2=\frac{1}{2}^2,\\\boxed{(x-1)^2+(y+1)^2=1/4}

7 0
3 years ago
Other questions:
  • Which best describes her prediction?
    14·1 answer
  • The vertical asymptote of the function f(x) = 3 log(x + 3)
    5·1 answer
  • I just need 5 please help show work and I’ll give brainliest
    6·1 answer
  • Find the equation of a line, in slope intercept form of a line that passes through the point (-5,-1) and is parallel to the line
    14·1 answer
  • Can yall help my friend plzz
    5·1 answer
  • Please help! Best answer gets Brainliest!
    13·2 answers
  • Does anybody know the answer to this I just need to finish the homework assignment to work on other stuff lol
    15·1 answer
  • If you are right you will get a brilliance
    14·2 answers
  • Triangle ABC is equilateral. Find the value of x, given that angle B has a measure of (4x-8).
    14·1 answer
  • Molly read 75 pages of the latest thriller mystery novel in 30 minutes. What was her unit rate?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!