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
Evgesh-ka [11]
2 years ago
15

How to factorise 9a^2bc^3 -27abc

Mathematics
1 answer:
olga2289 [7]2 years ago
3 0

Answer:

9abc(ac² - 3)

Step-by-step explanation:

<u>Given polynomial:</u>

  • 9a²bc³ -27abc

<u>Factors of the terms:</u>

  • 9a²bc³ = 3*3*a*a*b*c*c*c
  • 27abc = 3*3*3*a*b*c

<u>Common factors of the above: </u>

  • 3*3*a*b*c= 9abc

<u>So the answer:</u>

  • 9a²bc³ -27abc = 9abc(ac² - 3)
You might be interested in
What is the average rate of change for the function f(x)=3x^2 -5 on the interval −3 ≤ x ≤ −1 ?
Anestetic [448]

Answer:

-12

Step-by-step explanation:

Let b = -1 and a = -3

The average rate of change = \frac{f(b) - f(a)}{b - a}

f(b) = f(-1) = 3(-1)^2 - 5 = 3 - 5 = -2

f(a) = f(-3) = 3(-3)^2 - 5 =27 - 5 = 22

f(b) - f(a) = -2 - 22 = -24

b - a = -1 + 3 = 2

\frac{f(b) - f(a)}{b - a} = -24/2 = -12

4 0
2 years ago
Indicate the general rule for the arithmetic sequence with a3 = -12 and a8 = -37
Mandarinka [93]

Answer:

The general rule is a_n = -2 - 5(n-1)

Step-by-step explanation:

Arithmetic sequence:

In an arithmetic sequence, the difference between consecutive terms is always the same, and this difference is called common difference.

The general rule of an arithmetic sequence is given by:

a_{n} = a_1 + (n-1)d

In which a_1 is the first term and d is the common difference.

We can also find the nth term as a function of a term m, using:

a_n = a_m + (n-m)d

a3 = -12 and a8 = -37

First we find the common difference. So

a_n = a_m + (n-m)d

a_8 = a_3 + (8-3)d

-37 = -12 + 5d

5d = -25

d = -\frac{25}{5}

d = -5

So

a_n = a_1 - 5(n-1)

Finding the first term:

a_n = a_1 - 5(n-1)

Since a_3 = -12

a_n = a_1 - 5(n-1)

a_3 = a_1 - 5(3-1)

a_1 = a_3 + 10 = -12 + 10 = -2

So the general rule is:

a_n = a_1 - 5(n-1)

a_n = -2 - 5(n-1)

6 0
2 years ago
The ends of a pipe when measured with a tape measure that has marks every millimeter are exactly at the 0 mark and the 15 meter
exis [7]
If the ends span from the 0 to the 15 meter mark, then the length of the pipe is 15 meters. However, you should report it using the right amount of significant figures. It is mentioned in the problem that millimeter marks are calibrated between meters. Since millimeter is 1/1000 of a meter, you should add three decimal places to the 15 meters. Hence, you should report it as 15.000 meters.
3 0
3 years ago
Help me please help with this problem
vodomira [7]
It would be x=-4 have a good day
5 0
3 years ago
Given that F(x) = x2 + 2, evaluate F(1) + F(5).
gavmur [86]

Answer:

F(1)+F(5)= 30

Step-by-step explanation:

F(1)=1^2+2=1+2=3

F(5)=5^2+2=25+2=27

27+3=30

6 0
3 years ago
Other questions:
  • What is 13/18 as a percent?
    8·2 answers
  • The first day of Alex's trip was a Monday. What day of the week was Day 393939 of Alex's trip? Select the correct answer. Day 39
    12·1 answer
  • PLEASE HELP!!! Thank you!!!
    12·2 answers
  • Bidmas 7+8 divided 5-2
    13·2 answers
  • 4+4+8+8+422+33+65520222222+222
    10·1 answer
  • A number, one-fourth of that number, and one-third of that number are added. The result is 38. What is the original number?​
    5·1 answer
  • 25
    13·2 answers
  • Write an equivalent expression by factoring.<br><br>5x + 15​
    11·1 answer
  • How to solve 25= 4+ 7x
    11·1 answer
  • Can anybody help me with my work
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!