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
Marat540 [252]
2 years ago
10

Could someone clarrify this for me Factor completely 3x^2 + 2x − 1. (3x + 1)(x − 1) (3x + 1)(x + 1) (3x − 1)(x + 1) (3x − 1)(x −

1)
Mathematics
2 answers:
kotegsom [21]2 years ago
6 0

Answer:

(3x-1)(x+1)

Step-by-step explanation:

3x² + 2x − 1

when factorizing , first look at the constant number( in this case it is 1 prime number), then find the GCF if found.

(3x        )(x      )     first step : 3x*x=3x^2

(3x-      ) (x+   )      the sign for the constant is minus so the factoring has to be minus and plus on each side

(3x-1)(x+1)   look at the 2x it has positive sign, means the sign is plus:

3x-1

x+1

<u>                    </u>     regular standard multiplication

3x(x)-1(x)+1(3x)-1

3x²+2x-1

valina [46]2 years ago
4 0

Answer:

(3x-1) (x+1)

Step-by-step explanation:

3x^2 + 2x − 1

3x^2 factors into 3x and x

-1 factors into -1 and 1

We want a postive 2x

(3x-1) (x+1)

You might be interested in
A package of 6 pairs of insulated socks cost $85.20 what is the unit price of thepairs of socks
ExtremeBDS [4]
$85.20/6= $14.20/pair is the answer because unit price equals cost/pairs
4 0
3 years ago
700 is 10 times as much as blank
creativ13 [48]

700 is 10 times as much as 70 since 70 times 10 equals 700.

70 is the answer

Hope this helps!

8 0
2 years ago
Read 2 more answers
Larry gave the clerk $10 for purchase of a $3.25 note book and a $2.58 set of markers.How much q change should he receive
Xelga [282]
Larry should re receive $4.17
7 0
3 years ago
Read 2 more answers
g (15 points) Suppose 42 out of 600 rats exposed to a potential carcinogen develop tumors. A control group of 350 rats not expos
vazorg [7]

Answer:

a) The relative risk is 1.8\overline{846153}

b) The attributable risk is 0.69 \overline{047619}

c) There is a relationship between exposure and tumor risk

Step-by-step explanation:

The number of exposed rats that develop tumors, a = 42

The number of rats exposed to the carcinogen = 600 rats

The number of exposed rats that did not develop tumors, b = 600 - 42 = 558

The number of not exposed rats in the control group = 350 rats

The number of rats that develop tumors in the control group, c = 13 tumors

The number of not exposed rats that did not develop tumors, d = 350 - 13 = 337  rats

a) The relative risk, RR = a/(a + b)/(c/(c + d))

∴ RR = (42/(42 + 558))/(13/(13 + 337)) = 49/26 = 1.8\overline{846153}

b) The attributable risk = (a - c)/a

∴ The attributable risk = (42 - 13)/42 = 0.69 \overline{047619}

c) The odds ratio = (a·b)/(c·d)

∴ The odds ratio = 42 × 558/(13 × 337) = 23439/4381 ≈ 5.35

Given that the result of attributable risk is positive, there is an indication that there is a higher probability to develop tumor when exposed to the potential carcinogen, therefore, there is a relationship between exposure and tumor risk

7 0
3 years ago
Lol I’m struggling very much
Alex73 [517]

Look all you have to do is with each question draw a line to the answer I am going to help you. Mark the 3rd question with answer A Mark the second question with b and the first one C I might be wrong with the first one. Hope this helps  

3 0
3 years ago
Other questions:
  • Which is the best estimate of the residual when x = 3?<br><br> –0.5 <br> –1.5 <br> 1.5 <br> 0.5
    14·1 answer
  • Suppose bug B lands on the end of the wiper blade closest to the pivot. Assume the wiper turns through an angle of 120°. In one
    7·1 answer
  • An amount of 19,000 is borrowed for 7 years at 7.75% interest, compounded annually. If the loan is paid in full at the end of th
    8·1 answer
  • This month 9,675 people visited Hank’s web site.This is 3 times the number that visited last month.How many people visited Hank’
    12·1 answer
  • Explain how to draw a bar a player named Eric who scored 20 points
    5·1 answer
  • If the divisor is 40 what is the least three digit dividend that would give a remainder of 4
    11·1 answer
  • M = 3 and the point is (6, 18). Put this into slope-int form
    13·1 answer
  • Solve 7z + 4 - 5z &gt; 8 + 12
    12·2 answers
  • Can someone plz help Me?
    5·1 answer
  • Which of the following explains whether the student is correct? The student is completely correct because the student correctly
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!