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
gavmur [86]
3 years ago
7

Which is the polynomial function of lowest degree with rational real coefficients, a leading coefficient of 3 and roots

Mathematics
1 answer:
olga2289 [7]3 years ago
4 0

Answer:

f(x) = 3x^{3}  - 6x^{2} - 15x + 30

Step-by-step explanation:

If  \sqrt{5}  is a root, then so is -\sqrt{5}

f(x) = 3(x + \sqrt{5})(x - \sqrt{5})(x - 2)

     = 3(x^{2} - 5)(x - 2)

     = 3(x^{3} - 2x^{2} - 5x + 10)

     = 3x^{3}  - 6x^{2} - 15x + 30

You might be interested in
in a class, 3/4 of the class like to go to the movies, 2/3 like action movies... how many like action movies in the class
7nadin3 [17]
50% i'm going to show you with=25%
you start a full calls

/4 going to the movies
]/3 like action movies
25%25% =50%
8 0
4 years ago
Can someone help me?
Fed [463]

Answer:

sorry bruv wish you the best i will pray for you

Step-by-step explanation:

7 0
3 years ago
The local hamburger restaurant is famous for how quickly they can assemble a burger. The restaurant advertises that its constant
melisa1 [442]

The gievn equation is ,

t=11.3h\ldots(1)

where t is the time in seconds and h is the no.of hamburgers assembled.

put h = 2 in equation (1).

\begin{gathered} t=11.3\text{ (2)} \\ t=22.6 \end{gathered}

blank A assembles 2 hamburges in 22.6 seconds.

put h = 3 in equation (1)

\begin{gathered} t=11.3(3) \\ t=33.9 \end{gathered}

blank B assembles 3 hamburgers in 33.9 seconds.

put h = 5 in equation (1)

\begin{gathered} t=11.3(5) \\ t=56.5 \end{gathered}

blank C assembles 5 hamburgers in 56.5 seconds.

put h = 8 in equation (1)

\begin{gathered} t=11.3(8) \\ t=90.4 \end{gathered}

blank D assembles 8 hamburgers in 90.4 seconds.

3 0
1 year ago
Order pair of x=y+2 and 2y=x-1
EastWind [94]
<span>x=y+2
2y=x-1
substitute </span>x=y+2  into 2y=x-1

2y=x-1
2y=y+2 -1
2y - y = 1
y = 1

<span>x=y+2
</span><span>x=1+2
x=3

answer
x = 3 and y = 1</span>
5 0
3 years ago
Gavin drove 85 miles on 10 gallons of gas.How many miles can gavin drive on 25 gallons of gas?
bixtya [17]

Answer:

212.5 miles on 25 gallons.

Step-by-step explanation:

Set up a proportion

85 miles on 10 gallons

x miles on 25 gallons.

85/10 = x / 25                   Multiply both sides by 25

85*25 / 10 = x                   Simplify the left

2125 / 10 = x

x = 212.5 miles in 25 gallons.

6 0
3 years ago
Other questions:
  • Easy to Find, a computer data base, charges $30/h during peak hours to access its records. The charge during off-peak hours is $
    14·1 answer
  • Convert 7.23 (3 reapting) to a fraction
    13·1 answer
  • 5y(2y-3)=(2y-3) can someone help me and explain step by step on how to do it
    7·1 answer
  • I need help tell me the answer plz
    12·2 answers
  • Which equation represents the following word sentence? Five more than three times x is twenty. 5x + 3 = 20 3x + 5 +20 3(x + 5) =
    7·1 answer
  • 2. What is the area of this triangle?
    14·1 answer
  • Solve for x in the equation 3 x squared minus 18 x + 5 = 47.
    5·2 answers
  • What is 20% of 55?
    12·1 answer
  • What is 286,713 rounded to nearest ten thousand?
    5·1 answer
  • Madelyn states that the value of the expression (-2/3)x ^2 + x + 7 3/4 is sometimes negative. Which of the following values of x
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!