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
JulsSmile [24]
3 years ago
9

What are the zeros of the quadratic function f(x) = 6x^2 + 12x – 7?

Mathematics
1 answer:
irinina [24]3 years ago
3 0
<span>6x^2 + 12x – 7 = 0

Use the quadratic formula:

x=  \frac{-b +/-  \sqrt{b^2 -4ac} }{2a}

\frac{-12+/- \sqrt{ 12^{2} -4(6)(-7)} }{12} = \frac{-12+/-17.66}{12}

x = 0.47 and x = -2.47
</span>
You might be interested in
Amar and his friends went to a movie at 4:45 p.m. The movie ended at 6:20 p.m. PART A How long was the movie in hours and minute
babunello [35]

Answer:

The movie was 1 hour and 35 minutes long. (Or 95 minutes long)

Step-by-step explanation:

Well let's see:

It will take 15 minutes from the start to reach 5:00 PM

4:45+0:15=5:00

Now it will be 1 hour and 20 minutes from 5:00 PM to reach the end time of the movie.

Adding the minutes and hours together:

1 hour + 20 minutes + 15 minutes = 1 hour and 35 minutes

5 0
2 years ago
Read 2 more answers
A rectangular parcel of land has an area of 3,000 ft2. A diagonal between opposite corners is measured to be 10 ft longer than o
Kazeer [188]

Answer:

40 ft × 75 ft

Step-by-step explanation:

Let x be the one side ( in feet ) of the rectangular parcel,

So, the diagonal between opposite corners = ( x + 10 ) feet,

Let y be the other side of the rectangle ( adjacent to side x ),

The area of the rectangle,

A = x × y,

According to the question,

A = 3000 square ft,

\implies xy = 3000\implies y=\frac{3000}{x}

∵ In a rectangle,

D^2=a^2+b^2

Where, a and b are the adjacent side of the rectangle and D is the diagonal,

(x+10)^2 = x^2 + y^2

(x+10)^2 = x^2 + \frac{9000000}{x^2}

x^2(x+10)^2 = x^4 + 9000000

x^2(x^2+100+20x) = x^4 + 9000000

x^4+100x^2 + 20x^3 = x^4 + 9000000

20x^3 + 100x^2 - 9000000=0

x^3 + 5x^2 - 450000 = 0

By graphing the equation,

We found that,

The only real zeros of the equation is at x = 75,

Hence, the one side of the rectangle = 75 ft,

And, second side = \frac{3000}{75} = 40 ft

Hence, the dimension of the land is 40 ft × 75 ft

3 0
2 years ago
Read 2 more answers
Which of the following is NOT a solution to the system of inequalities?
timofeeve [1]

Answer:

(+,0)

Step-by-step explanation:

because the graph of the inequality

4 0
2 years ago
What is 5x10=50+60=<br> have a nice day
Vanyuwa [196]

Answer:

The answer is One hundred and ten

6 0
2 years ago
Please help its timed​
Gennadij [26K]

Answer:

A.) f(x) = 45 - 4(x - 1)

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • Ben is planning to fence his rectangular garden the area of the garden is 50 square feet and the length of the garden is twice t
    9·1 answer
  • Two boys are throwing a baseball bat back and forth. The ball is 4ft above the ground when it leaves one child's hand with an up
    13·2 answers
  • What is 5 divided by 535?
    9·1 answer
  • How the solve 14% of 27
    9·2 answers
  • Which of the following expressions is equivalent to the one shown below (3/2)^8
    5·1 answer
  • Sandy works 5 days out of the week If sandy got 4 apples everyday she worked how many apples would sandy get a week?
    6·2 answers
  • How large is 12 than 60
    12·1 answer
  • Where should you plot the ordered pair (6,3) in relation to the origin?
    9·1 answer
  • sarah use 3/4 pound of b blueberries to make 1/2 cup of jam . how many pound of blueberries would she need to make a cup of jam
    9·1 answer
  • Answerrrrrrrrrrrr plzzzzzzzzzzz
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!