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
Nikitich [7]
3 years ago
8

Which real numbers are zeroes of the function f(x)=2x^3-x^2-8x+4

Mathematics
2 answers:
tatuchka [14]3 years ago
7 0

Answer:

2, -2 and 1/2

Step-by-step explanation:

As the the first coefficient is 2 and the last number is 4  1/2, 2, -2 seem likely zeros ( By the rational roots theorem).

f(2) =  2*8 - 4 -16 + 4 = 0 so 2 is a zero.

f(-2) = -16 - 4 +16 + 4 = 0  so -2 is a zero

f(1/2) = 2*1/8 - 1/4 - 4 + 4 = 0 so 1/2 is the other zero.

Since the highest degree is 3  the maximum number of zeroes is 3.

earnstyle [38]3 years ago
6 0

Answer:

Try math

way if you need help on apex

Step-by-step explanation:


You might be interested in
Please help
Aloiza [94]
A=10x(15x)-p(4x)^2

A=150x^2-16px^2

A=(150-16p)x^2
6 0
3 years ago
2<br> Help what is the product of 46x10
krok68 [10]

Answer:

460

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
the dimensions of a smaller rectangle are 3ft by 9ft the dimensions of a larger rectangle are 5ft by 15ft find the ratio of the
Alexxandr [17]

The ratio of the area of the smaller rectangle to the area of the larger

rectangle is \frac{9}{25}

Step-by-step explanation:

The formula of the area of a rectangle is A = l × w, where l and w

are its dimensions

  • The dimensions of a smaller rectangle are 3 ft by 9 ft
  • The dimensions of a larger rectangle are 5 ft by 15 ft

We want to find the ratio of the area of the smaller rectangle to

the area of the larger rectangle

∵ The dimensions of the smaller rectangle are 3 ft and 9 ft

∴ The area of the smaller rectangle = 3 × 9 = 27 feet²

∵ The dimensions of the larger rectangle are 5 ft and 15 ft

∴ The area of the smaller rectangle = 5 × 15 = 75 feet²

Let us find the ratio of the area of the smaller rectangle to the area

of the larger rectangle

→ smaller rectangle  :  larger rectangle

→ 27                           :  75

Divide the both terms of the ratio by 3

→ 9                             :  25

The two terms of the ratio do not divisible by any other number

∴ The simplest form of the ratio is 9 : 25

∴ The ratio of the area of the smaller rectangle to the area of the larger

   rectangle = \frac{9}{25}

The ratio of the area of the smaller rectangle to the area of the larger

rectangle is \frac{9}{25}

Learn more:

You can learn more about the ratio in brainly.com/question/10781917

#LearnwithBrainly

7 0
3 years ago
A 7-pack of tickets to the zoo costs $78.61. What is the unit price?
vredina [299]

Answer:

$11.23

Step-by-step explanation:

To find the unit price divide the price by the product. For example, 12 ounces of juice costs $2.45. You divide $2.45 by 12 ounces. The unit price would be $0.20.

<em>I hope this helped you, if it did more than all the other answers that may be on your question, feel free to give me brainliest, I would really appreciate it.</em>

7 0
3 years ago
Read 2 more answers
Is the square root of 19 rational
kicyunya [14]

Answer:

No

Step-by-step explanation:

The square root needs to be a perfect square root to be a rational number, for example: the square root of 25 which equals 5.

3 0
3 years ago
Other questions:
  • Square root of 64y16
    6·2 answers
  • Can somebody please help me out ​
    9·2 answers
  • Will give a lot of points!
    7·2 answers
  • Find the value of x.
    15·2 answers
  • Writ an equation of a parabola that has a vertex (1,3) and passes through the point (2,5)
    7·2 answers
  • The Gonzalez family sold their home for $256,000. Their real estate agent earned 5.5% in commission of that sale. How much did t
    14·1 answer
  • LISTEN AND LEARN<br> -5r - 3 = 12<br> +3 + 3<br> -5r - 15<br> What does R equal
    13·1 answer
  • Need help asap......
    5·1 answer
  • Can any one help me with these 2 plsss :/
    15·1 answer
  • Josie needs to rent a car from SureRide Car Rentals. The cost of renting a car iS a
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!