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
lys-0071 [83]
2 years ago
14

Examine the quadratic equation 9x^2+12x +4= 0.

Mathematics
1 answer:
mestny [16]2 years ago
4 0

Answer:

See answers and explanations

Step-by-step explanation:

A) Discriminant = b² - 4ac = (12)² - 4(9)(4) = 144 - 144 = 0

B) Since the discriminant is 0, this means the equation only has one root.

C) The root is real in this case since the discriminant is not negative. Otherwise, we would have two imaginary roots if it were (remember that complex roots come in pairs)

You might be interested in
Find the Value of X. If your answer is not an integer, express it in simplest radical form.
Gennadij [26K]
For each question we must apply the Pythagorean theorem and clear the value of x.
 question 5 
 x = root (14 ^ 2 + 16 ^ 2)
 x = root (452)
 x = 2raiz (113)
 question 6
 
x = root (8 ^ 2 + 15 ^ 2)
 x = 17
 question 7
 
x = root (12 ^ 2 + 12 ^ 2)
 x = root (2 * (12 ^ 2))
 x = 12raiz (2)
 question 8
 x = root (18 ^ 2 - 9 ^ 2)
 x = root (243)
 x = 9raiz (3)
6 0
2 years ago
What is the quotient of 2x^3 +3x^2+5x-4 divided by x^2 + x+ 1
Alexus [3.1K]

Answer:

2x^3+3x^2+6x-4/x^2 +1

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Anastasia is grocery shopping with her father and wonders how much shopping is left to do. "We already have 6 0 % 60%60, percent
Molodets [167]
If there are 12 items adding up to 60%, we want to know how many items more it will take to equal 100% So set up this equation 12/x = .6 then solve for x. x=12/.6 x = 20 now that we know the total you can subtract 12 from 20 and get 8, that is the number of items left on the list.
8 0
3 years ago
Read 2 more answers
A right rectangular prism has a length of 9, a width of 4, and a height of 5. How many unit cubes can fit in the prism?
Serjik [45]

Answer:

The answer is 54 cubes.

Step-by-step explanation:

5 0
3 years ago
5. Please write the equation of a line in y=mx+b format. Find the SLOPE first then find the Y-INTERCEPT (b) Your answer​
castortr0y [4]

Answer:

y = \frac{5}{3}x-1

Step-by-step explanation:

Let the equation of the line is,

y = mx + b

Here m = slope of the line

b = y-intercept

Slope of a line passing through two points (x_1,y_1) and (x_2,y_2) is,

m = \frac{y_2-y_1}{x_2-x_1}

From the graph attached,

Since, the given line passes through (0, -1) and (3, 4),

Slope 'm' = \frac{4+1}{3-0}

m = \frac{5}{3}

y - intercept 'b' = -1

Therefore, equation of the line will be,

y = \frac{5}{3}x-1

5 0
2 years ago
Other questions:
  • A store manager timed Janette to see how long it would take her to fold and put away a sweater, a shirt, a pair of pants, and a
    14·2 answers
  • Express 81 as the sum of first nine consecutive odd numbers
    12·1 answer
  • NEED ASAP PLEASE
    10·3 answers
  • Felipe has completed 6 deliveries so far this week. He needs to make 60 deliveries for the week. What percentage of his deliveri
    11·1 answer
  • A tree casts a shadow 12 meters long , while a bush nearby casts a shadow 3.5 meters long. If the tree is 3.2 meters tall, how t
    11·1 answer
  • What is 8 divided by 4
    9·2 answers
  • 2/7(x+4)=−6 help<br> x=−35<br><br> x=−25<br><br> x = 25<br><br> x =35
    6·1 answer
  • PLEASE HELP ME FAST I NEED HELP PLEASE
    12·1 answer
  • The length of a pencil is 128 mm correct to the nearest
    8·1 answer
  • The price of a television was reduced from $250 to $200. By what percentage was the price of the television reduced?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!