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
mina [271]
2 years ago
14

Which is a factor of z3 - z2 - 9z + 9?

Mathematics
1 answer:
lara31 [8.8K]2 years ago
3 0
Z²(z-1)-9(z-1)
= (z²-9)(z-1)
= (z+3)(z-3)(z-1)
You might be interested in
25% of all vehicles sold at the dealership were trucks, If 32 trucks were sold, how many vehicles were sold?​
SpyIntel [72]

Answer:

128 vehicles

Step-by-step explanation:

32 trucks being 25 % or 1/4 of the vehicles, you simply mulitply 32 x 4=128

4 0
3 years ago
Read 2 more answers
(4.1.4) Let X and Y be Bernoulli random variables. Let Z = X + Y. a. Show that if X and Y cannot both be equal to 1, then Z is a
Fynjy0 [20]

Step-by-step explanation:

Given that,

a)

X ~ Bernoulli (p_x) and Y ~ Bernoulli (y_x)

X + Y = Z

The possible value for Z are Z = 0 when X = 0 and Y = 0

and Z = 1 when X = 0 and Y = 1 or when X = 1 and Y = 0

If X and Y can not be both equal to 1 , then the probability mass function of the random variable Z takes on the value of 0 for any value of Z other than 0 and 1,

Therefore Z is a Bernoulli random variable

b)

If X and Y can not be both equal to  1

then,

p_z = P(X=1 or Y=1)\\

p_z = P(X=1)+P(Y=1)-P(=1 and Y =1)

p_z = P(x=1)+P(Y=1)\\\\p_z=p_x+p_y

c)

If both X = 1 and Y = 1 then Z = 2

The possible values of the random variable Z are 0, 1 and 2.

since a  Bernoulli variable should be take on only values 0 and 1 the random variable Z does not have Bernoulli distribution

7 0
3 years ago
Which expression could be used to solve the problem?
Paladinen [302]
THE ANSWER IS D whoops lol sorry i was in an argument lol 
4 0
3 years ago
A team of ten cyclists wants to choose leaders. in how many ways can the team choose one captain and then two assistants?
AURORKA [14]

Answer:

The team can look at who has been there the longest to pick the captian, and then the assistants can be two people who the captian would best work with. Also look for loyalty and integridy, honestly and good traits that have been shown.

4 0
3 years ago
In one city, taxi company A charges $5 plus $0.35/km travelled. Taxi company B charges $3.50 plus $0.50/km.
lions [1.4K]

Answer:

If you are asking for the equations, Company A would be 0.35x + 5 and Company B would be 0.50x + 3.50. :)

Step-by-step explanation:

3 0
2 years ago
Other questions:
  • What is a rational number between 1/8 and 1/4?
    9·2 answers
  • 2.What is the value of the expression 1/5-5?<br> a.1/3125<br> b.1/25<br> c.25<br> d.3125
    12·1 answer
  • How do you solve this
    12·1 answer
  • How many solutions does the equation 9x+27=27 have ?
    9·1 answer
  • The product of -3 and -7 is positive.<br><br><br> True or False
    7·2 answers
  • How to write 16,208.59 in word form
    12·1 answer
  • How do similar right triangles lead to the definitions of the trigonometric ratios?
    15·1 answer
  • If f(x) =X +3, what is the value of f(3) and f(-2)?
    6·1 answer
  • Find the following for the function f(x) = x/x^2+1
    13·1 answer
  • a warehouse has 3 shelves long enough to hold 6 boxes and high enough to hold 4 boxes. All the shelves are full. There are blank
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!