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
Genrish500 [490]
3 years ago
9

Solve the quadratic equation by completing the square. 3x2 - 6x - 4 = 0

Mathematics
1 answer:
Akimi4 [234]3 years ago
7 0

Answer:

-0.53, 2.53 to the nearest hundredth.

Step-by-step explanation:

3x^2 - 6x - 4 = 0    

3(x^2 - 2) - 4 = 0

3 [ ( x - 1)^2 - 1] = 4

3(x - 1)^2 - 3 = 4

3(x - 1)^2 = 7

(x - 1)^1 = 7/3

x - 1 = +/- √(7/3)

x =   +/- √(7/3) + 1

x = 2.53, -0.53.

You might be interested in
3x2 – 7x 7x = 4x – 8​
ratelena [41]

Answer:

x =−1−√93/23,−1+√93/23

Step-by-step explanation:

x=0.37581090…,−0.46276742...

5 0
3 years ago
Read 2 more answers
​Use the compound interest formula to compute the balance in the following account after the stated period of​ time, assuming in
katrin2010 [14]

The balance in the account after 13 years is $8233.79.

<h3>Compound interest: Calculating balance in an account</h3>

From the question, we are to use the compound interest formula to compute the balance in the account

From the compound interest formula, we have that

A = P(1 + r/n)^nt

Where A is the amount

P is the principal

r is the interest rate

n is the number of times compounded per year

and t is the time.

From the given information,

P = $7000

r = 3.3%= 0.033

n = 1

t = 13

Putting the parameters into the formula

A = P(1 + r/n)^nt

A = 7000(1 + 0.033/1)^(1×5)

A = 7000(1 + 0.033)^5

A = $8233.79

Hence, the balance is $8233.79

Learn more on Compound interest here: brainly.com/question/25545513

#SPJ1

6 0
2 years ago
I’m not sure how to get the gradient
snow_tiger [21]
The gradient is 2.

You divide the increase in y (2) by the increase in x (1)
5 0
3 years ago
Jan bought 8 towels at 39.60 how to make this an equation
andreyandreev [35.5K]

Answer:

IF she bought 8 towels for 39.60 and you are trying to find out how much each one cost you would divide 39.60 by 8 to get your answer but if each towel cost 39.60 then you would times 8 by 39.60.

Step-by-step explanation:

39.60 divided by 8 = 49.5

8 x 39.60=316.8

8 0
3 years ago
How do I find f(2) if f(x)=2x-1​
Vanyuwa [196]

I hope this helps you

let's write 2 for x

f(2)=2.2-1

f(2)=4-1

f(2)=3

4 0
3 years ago
Read 2 more answers
Other questions:
  • The relation between y = ideal weight (lbs) and x =actual weight, based on data from n = 119 women, resulted in the regression l
    7·1 answer
  • What is direct variation? (15 POINTS)
    6·2 answers
  • Which fraction is more 1/3 3/8 or 4/6
    7·2 answers
  • How do you put 0.02 in scientific notation
    13·1 answer
  • Find f”(x)=(3x^4+2)^5
    8·1 answer
  • PLS PLS ANSWER (NO UNKNOWN LINKS OR ILL REPORT U)
    14·2 answers
  • Talia runs and swims every day. She runs for 0.75 hours per day. She swims for s hours per day. Over 4 days, she runs and swims
    11·2 answers
  • Need the term thxxxxxxxx
    13·1 answer
  • B. Tyler's playlist has 36 songs. Noah's playlist has one quarter as many songs as
    8·1 answer
  • In a school of 2000 students, 1150 do not like puzzles. 2/5 of the students travel to school by bus. 595 of the people that do l
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!