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
rjkz [21]
3 years ago
15

State the number of possible real zeros and turning points of f(x) = x7 – 6x6 + 8x5. Then determine all of the real zeros by fac

toring.
=
Mathematics
1 answer:
Rudiy273 years ago
3 0

Answer:

steps below

Step-by-step explanation:

f(x) = x⁷ – 6x⁶ + 8x⁵

f'(x) = 7x⁶ - 36x⁵ + 40x⁴

      = x⁴ (7x² - 36x + 40)   ... (1)

Critical point (x,y): x = 0  ,  x = (36 ± √(-36)²-4*7*40) / (2*7) = (18±2√11) / 7

x = 0   or   x = 3.5    or    x = 1.6

plug into (1): y = 0   ,  y = -394.3  ,    y = 10.1

extreme : <u>maximum (1.6 , 10.1)</u>       <u>minimum (3.5 , -394.3)</u>  ... turning points

x⁷ – 6x⁶ + 8x⁵ = x⁵ (x² - 6x + 8) = x⁵ (x-2) (x-4) =0

<u>real zeros: x = 0,   x=2,    x=4</u>

You might be interested in
Need help with this problem
Alika [10]

Answer: B) 86°

Step-by-step explanation:

The angles of a triangle always add to equal 180.

So let's call the third angle x and add the other two angles with it.

32+62+x=180

94+x=180

Now we solve for x

Subtract 94 from both sides

94-94+x=180=94

x=86

3 0
3 years ago
What is the answer pleasee
denis23 [38]

The value of interior angle x for the given pentagon if found as 88 degrees.

<h3>What is termed as the pentagon?</h3>
  • A pentagon is a two-dimensional polygon with 5 sides and 5 angles.
  • This shape should have five sides and form a closed two-dimensional figure.
  • A closed figure consists of each of its sides intersecting to form vertices.
  • Five diagonals connect the five vertices to one‘s opposite vertices in a pentagon shape.
  • Each interior angle in a regular pentagon is 108°, so each exterior angle is 72°.

For the given question;

The exterior angles of the pentagon are given in figure.

Find all the interior angles for given angles using linear pair as all are straight lines.

  • 180 - 62 = 118
  • 180 - 33 = 147
  • 180 - 114 = 66
  • 180 - 59 = 121

The sum of all the interior angle of pentagon is 540.

Thus,

118 + 147 + 66 + 121 + x = 540

x = 540 - 452

x = 88

Thus, the value of interior angle x for the given pentagon if found as 88 degrees.

To know more about the pentagon, here

brainly.com/question/25917702

#SPJ13

6 0
1 year ago
PLSSSSSSSSHELPPPPP
kicyunya [14]

Answer:

Subscribe to DiamondPugs on YT

Step-by-step explanation:

7 0
3 years ago
Can someone help me with these questions please
Nadya [2.5K]

Answer:

7/2 = 3.5

3.5+3.5 = 7

x = 3.5

7*1 - 19*1 = 9 - 17 = -6

yw ;)

6 0
3 years ago
Read 2 more answers
1. If you want to create a cone or cylinder by spinning a 2–dimensional shape about an axis of symmetry, what shapes would you n
Svetllana [295]
1) The answer for both includes a circle. You would rotate the shape around the axis of symmetry, creating an infinite number of 2-d circles stacked on top of each other, creating the cone or cylinder. In the case of a cylinder, the other shape is a rectangle, and in the case of a cone, a right triangle with one line serving as the axis of symmetry.

2) The volume of a cone is the area of the base, multiplied by height, divided by 3. This means that the volume of a cone is 1/3 the volume of a cylinder of equal height and base area. The volume of a cylinder is the area of the base times height. The volume of a pyramid, similar to a cone, is the area of the base (length x width) times the height, divided by three.

3) One definition of density is mass/volume, or mass per unit of volume. For example, if a 5 kg object has a volume of 10 cm³, than the density would be 0.5kg/cm³. In population density, relative to our example, area takes the place of volume and population takes the place of mass. This means that population density is population/area. For example, if 10,000 people occupy an area of 5 square miles, then the population density is 2,000 people/ square mile. 

4) As you are clearly learning in this class, the volume of an object is not only determined by its dimensions, such as base, width, and height, but its shape. Let's review the cone example. If a cone and a cylinder have the same base area and height, the cone has a volume of 1/3 that of the cylinder. 

5) When might you want to use volume in your daily life? Here is a depressing example. Say your corporate job in the Accounting Department has you feeling blue, and your only break is your daily trip to the water cooler. The cups at the cooler are cone-shaped. Not only is this inconvenient because you can't stand them up without getting the rim dirty, but these cups contain 1/3 the water that a perfectly cylindrical cup of the same base/height could provide. You may tell your manager this, and earn yourself some fancy new cylindrical paper cups! 
8 0
3 years ago
Other questions:
  • Find, correct to the nearest degree, the three angles of the triangle with the given vertices.
    13·1 answer
  • What is the slope of the line? y+2=−2(x−3) Choose 1 answer: A. −1/2 B. 1​ C. −2 D. −1
    11·2 answers
  • Find the slope of line passing through the two points, (7, 1) and (-2, 1).
    8·1 answer
  • Kyle drive his truck 429 mile on 33 gallons of gas. How many miles xan Kyle drive on 1 gallon of gas.
    10·1 answer
  • HELP I NEED HELP ASAP
    10·1 answer
  • (Repost) please help what is 7 7/10 rounded to the nereast whole number?? please explain your answer if you got it cause I can L
    9·2 answers
  • Judd bought a pack of pencils and sold it for 10% profit. Write an expression for the selling price.
    14·1 answer
  • Please help head right now right now​
    12·1 answer
  • Question 12
    15·1 answer
  • PLZ HELP BRAINLIEST<br> Which of the following graphs could represent a function?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!