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
Lina20 [59]
3 years ago
8

Show the work please

Mathematics
1 answer:
Kay [80]3 years ago
4 0

Answer:

1) (x + 3)(3x + 2)

2) x= +/-root6 - 1 by 5

Step-by-step explanation:

3x^2 + 11x + 6 = 0 (mid-term break)

using mid-term break

3x^2 + 9x + 2x + 6 = 0

factor out 3x from first pair and +2 from the second pair

3x(x + 3) + 2(x + 3)

factor out x+3

(x + 3)(3x + 2)

5x^2 + 2x = 1 (completing squares)

rearrange the equation

5x^2 + 2x - 1 = 0

divide both sides by 5 to cancel out the 5 of first term

5x^2/5 + 2x/5 - 1/5 = 0/5

x^2 + 2x/5 - 1/5 = 0

rearranging the equation to gain a+b=c form

x^2 + 2x/5 = 1/5

adding (1/5)^2 on both sides

x^2 + 2x/5 + (1/5)^2 = 1/5 + (1/5)^2

(x + 1/5)^2 = 1/5 + 1/25

(x + 1/5)^2 = 5 + 1 by 25

(x + 1/5)^2 = 6/25

taking square root on both sides

root(x + 1/5)^2 = +/- root(6/25)

x + 1/5 = +/- root6 /5

shifting 1/5 on the other side

x = +/- root6 /5 - 1/5

x = +/- root6 - 1 by 5

x = + root6 - 1 by 5 or x= - root6 - 1 by 5

You might be interested in
I neeed heeellpp gooot 20 minutttteeessss leffttt​
max2010maxim [7]

Answer:

its A

Step-by-step explanation:

F is the midpoint of AA' because E.G. bisects AA'.

4 0
2 years ago
Write a summary can Smartphones improve student lives? why or why not ( in your own words )
bonufazy [111]

Answer:

Smartphones can imrove student lives by giving students the ability to contact their teachers to ask questions or comment on a specific work. they can also allow the student to look up answers and learn from what others think. Smartphones can also add distractions in class and allow an easy way to cheat on a test or a quiz. Overall Smartphones can be beneficial and harmful to a students life.

Step-by-step explanation:

4 0
3 years ago
Circumference of a circle ​
gregori [183]

Answer:

24.48757954 (I don’t know what it wants you to round it by

Step-by-step explanation:

Circumference= pi times diameter, radius is half of the diameter, so divide 153.86 divided by pi and then divide by 2 again

8 0
3 years ago
I need help ASAP <br>If ANYONE gets it right will be given <br>BRAINLIEST!!!​
kifflom [539]

Last one 9 46/180

It's actually pretty basic

4 0
2 years ago
Read 2 more answers
Fill in the table for side length and area of different squares.
Gnoma [55]

Answer:

0.09

Step-by-step explanation:

0.03 divided by 100

7 0
3 years ago
Other questions:
  • Question 20 of 33
    11·1 answer
  • A corporate team building event costs $2 for every attendee. If there are 8 attendees how much will the corporate team building
    9·1 answer
  • Solve this system of linear equations. Separate
    11·1 answer
  • What are the odds against choosing a red marble from a bag that contains two blue marbles, one green marble, seven white marbles
    10·2 answers
  • 17. The perimeter of each face of a Rubik's cube is
    6·1 answer
  • Rewrite the following as a multiplication and use an array to write it in standard form (15m + 24) ÷ 3.
    8·1 answer
  • PLEASE HELP I WILL GIVE BRAINLIEST!!!
    14·2 answers
  • Can someone help me with #1 #2 #3 please I really don’t understand
    10·1 answer
  • Matt have 2 cookies, while christine have 2 more than matt how many cookies will they have if the add them altogethe?.
    7·2 answers
  • Dina planted a six-foot tree in her backyard which she expects to grow at the rate of 4 feet per year. Find the equation of the
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!