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
Y_Kistochka [10]
3 years ago
14

QUICK PLEASE HELP ME ANSWER THESE QUESTIONS AND SHOW WORK!!! I WILL MARK BRAINLIEST!!!

Mathematics
2 answers:
nirvana33 [79]3 years ago
8 0

Answer: Its D

Step-by-step explanation:

Marysya12 [62]3 years ago
7 0

f(x) =x^5  -8x^3 +6x^2+7x-6\\\\= x^5 -2x^4+2x^4 -4x^3-4x^3+8x^2-2x^2+4x+3x -6\\\\=x^4(x-2) + 2x^3(x-2)  -4x^2(x-2) -2x(x-2) +3(x-2)\\\\=(x-2)(x^4+2x^3-4x^2-2x+3)\\\\=(x-2)(x^4-x^3+3x^3-3x^2-x^2+x-3x+3)\\\\=(x-2)[x^3(x-1) +3x^2(x-1) -x(x-1) -3(x-1)]\\\\=(x-2)(x-1)(x^3 +3x^2 -x -3)\\\\=(x-2)(x-1)(x^3 -x^2 +4x^2-4x+3x-3)\\\\=(x-2)(x-1) [x^2(x-1)+4x(x-1) +3(x-1)]\\\\=(x-2)(x-1)(x-1) (x^2 +4x +3)\\\\=(x-2)(x-1)^2(x^2 +3x+x +3)\\\\=(x-2)(x-1)^2 [x(x+3) +(x+3)]\\\\=(x-2)(x-1)^2(x+1)(x+3)

You might be interested in
The heights of men in a certain population follow a normal distribution with mean 69.7 inches and standard deviation 2.8 inches.
Mama L [17]

Answer:

a) P(Y > 76) = 0.0122

b) i) P(both of them will be more than 76 inches tall) = 0.00015

   ii) P(Y > 76) = 0.0007

Step-by-step explanation:

Given - The heights of men in a certain population follow a normal distribution with mean 69.7 inches and standard deviation 2.8 inches.

To find - (a) If a man is chosen at random from the population, find

                    the probability that he will be more than 76 inches tall.

              (b) If two men are chosen at random from the population, find

                    the probability that

                    (i) both of them will be more than 76 inches tall;

                    (ii) their mean height will be more than 76 inches.

Proof -

a)

P(Y > 76) = P(Y - mean > 76 - mean)

                 = P( \frac{( Y- mean)}{S.D}) > \frac{( 76- mean)}{S.D})

                 = P(Z >  \frac{( 76- mean)}{S.D})

                 = P(Z > \frac{76 - 69.7}{2.8})

                 = P(Z > 2.25)

                 = 1 - P(Z  ≤ 2.25)

                 = 0.0122

⇒P(Y > 76) = 0.0122

b)

(i)

P(both of them will be more than 76 inches tall) = (0.0122)²

                                                                           = 0.00015

⇒P(both of them will be more than 76 inches tall) = 0.00015

(ii)

Given that,

Mean = 69.7,

\frac{S.D}{\sqrt{N} } = 1.979899,

Now,

P(Y > 76) = P(Y - mean > 76 - mean)

                 = P( \frac{( Y- mean)}{\frac{S.D}{\sqrt{N} } })) > \frac{( 76- mean)}{\frac{S.D}{\sqrt{N} } })

                 = P(Z > \frac{( 76- mean)}{\frac{S.D}{\sqrt{N} } })

                 = P(Z > \frac{( 76- 69.7)}{1.979899 }))

                 = P(Z > 3.182)

                 = 1 - P(Z ≤ 3.182)

                 = 0.0007

⇒P(Y > 76) = 0.0007

6 0
3 years ago
Explain what step is incorrect pls help quick!?!??
AlekseyPX

Answer:

Step 1 (IM AM NOT SURE NOT MY FAULT IF ITS WRONG)

Step-by-step explanation:

4 0
3 years ago
Rewrite the equation 2y+3x=4 in slope-intercept form. then find the slope and y-intercept
Zinaida [17]

Answer:

y=  -3/2-2

Step-by-step explanation:

7 0
3 years ago
Help with number 6 please?
Bad White [126]

Answer:

64

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
I dont get this please help
Lilit [14]

Answer:

answer is last part 2ln[3].

Step-by-step explanation:

what you all need to do is put y = Ao/3 and then cancel Ao from both L.H.S. and R.H.S. and then take log on both the sides, open the log funciton....

7 0
3 years ago
Other questions:
  • Explain all parts of the equation y=mx+b <br><br> *will mark brainliest*
    14·1 answer
  • What is the answer ????
    5·1 answer
  • Find the pair of similar triangles shown . find the length of side h .
    9·1 answer
  • What is 77.2-43.778?<br>what is 2.072 divided by 5.6
    8·1 answer
  • I want the ans to this ques​
    9·1 answer
  • Use the order of operations to find the value of the expression.
    7·1 answer
  • 6. Solve the following equation for x. Show each step.<br> 5x + 2 = 3x + 4(2x - 1)
    13·2 answers
  • What is 1 3/4 + 4 7/12 as a mixed fraction??
    7·1 answer
  • The cost of one large pizza at your favorite pizza place is $15.99. The pizza place offers 21 different toppings. Each additiona
    13·1 answer
  • Find the perimeter of the triangle in the picture
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!