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
saul85 [17]
3 years ago
6

Factor the algebraic expression 21a + 9

Mathematics
2 answers:
vladimir2022 [97]3 years ago
6 0

Answer:

21a + 9

Simplifying

21a + 9

Reorder the terms:

9 + 21a

Factor out the Greatest Common Factor (GCF), '3'.

3(3 + 7a)

Final result:

3(3 + 7a)

HOPE THIS HELP

Harlamova29_29 [7]3 years ago
3 0

Answer:

3(7a+3)

Step-by-step explanation:

You might be interested in
I need help understanding problem number 2
HACTEHA [7]

Step-by-step explanation:

(<em>2</em><em>×</em><em>2</em><em>)</em><em> </em><em>.</em><em> </em>2<em>×</em><em>2</em><em>×</em><em>2</em><em>×</em><em>2</em><em> </em><em>. </em><em> </em>2×2×2

=(4) . 16 . 8

6 0
3 years ago
Mark wants to eat one last cookie from the cookie jar in the jar they are fire truck which of cookies six peanut butter cookies
Kisachek [45]

Answer: about 66.6% that he will not pick a PB one


Step-by-step explanation: Put both of them together and you get 15. 15 divede by 3 is 5. Two 5's is 10, which is about nine, so it would be 2/3 chance of getting an oatmeal cookie, which is the opposite of getting a pb one, 2/3 in a percentage is 66.6%



8 0
3 years ago
Read 2 more answers
HELP ASAP PLEASE!
Genrish500 [490]

Step-by-step explanation:

lets take a look....

In order to find the perimeter of a triangle you have to get the sum of all sides. In other words,

Blue triangle:

p = (4x +2) + (7x + 7) + (5x  - 4) \\ p = 4x + 2 + 7x + 7 + 5x - 4 \\ p = 16x + 5

Red triangle:

p = (x + 3) + (2x - 5) + (x + 7) \\ p = x + 3 + 2x - 5 + x + 7 \\ p = 4x + 5

Difference:

d = (16x + 5) - (4x + 5) \\ d = 16x + 5 - 4x - 5 = 12x \\ d = 12x

4 0
3 years ago
Find the area and perimeter of each composite figure.<br> 1.<br> 18 m<br> 13 m<br> 10 m<br> 30 m
sergejj [24]
Sorry if I am wrong I am not 100% sure I think it’s 13
6 0
4 years ago
What is greater than 100 inches or 3 yards and one of the
Nutka1998 [239]
To compare units either of them have to change to be the same unit

either change inches to yards, or yards to inches.

1 yard is 36 inches, so
3 yards = 3 × 36 = 108 in

100 in < 108 in

3 yards is greater.


4 0
4 years ago
Read 2 more answers
Other questions:
  • What is the slope of the line passing through the points (-1,3) and (4,-7)?
    14·2 answers
  • For a project, you need to make three triangles out of cardboard. Each triangle has a height of 5 inches and a base of 10 inches
    14·2 answers
  • A bag has 3 red rocks, 4 green rocks, 3 blue rocks, 3 speckled rocks,
    5·2 answers
  • 9 out of 13 lights are green . is there statistical signific to say these lights are programmed
    13·2 answers
  • What is the slope of a line that is perpendicular to BC¯¯ if the coordinates of B are (6, 3) and the coordinates of C are (3, −1
    13·1 answer
  • When a number is written in a scientific notation,how can you tell right away whether or not it is greater than or equal to 1?
    7·1 answer
  • The triangle shown below has an area of 50units squared. Find the missing side.
    8·1 answer
  • Find the slip of the life that passes through the two points (7,-10) and (-6,16)
    5·1 answer
  • Identify the independent variable and dependent variable in the situation:
    11·1 answer
  • Write a division that represents the question: how many 3/8s are in 5/4?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!