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
Gala2k [10]
3 years ago
12

Is x + 3 a factor of the polynomial 2x^3 + 5x - 3?

Mathematics
1 answer:
Lapatulllka [165]3 years ago
5 0

Answer: n = - 6

Step-by-step explanation:

Given (x + h) is a factor of a polynomial f(x) then f(- h) = 0

Here

f(x) = x³ + 2x² - 5x + n and (x + 3) is a factor then f(- 3) = 0 , that is

f(- 3) = (- 3)³ + 2(- 3)² - 5(- 3) + n = 0 , so

- 27 + 2(9) + 15 + n = 0

- 27 + 18 + 15 + n = 0

6 + n = 0 ( subtract 6 from both sides )

n = - 6

You might be interested in
What is the answer for: 7 - 8(x-3)=x-14
ikadub [295]

Answer:

1. x=5

2.x=-33/8

3.x=10

4.x=5

Step-by-step explanation:

5 0
3 years ago
In ΔEFG, the measure of ∠G=90°, the measure of ∠E=6°, and GE = 71 feet. Find the length of EF to the nearest tenth of a foot.
djyliett [7]

Answer:68.2

Step-by-step explanation:

cos6=71/EF

cos6= 0.960170286650366

0.960170286650366= 71/EF

0.960170286650366*71=EF

EF= 68.2

3 0
3 years ago
Read 2 more answers
What is y= 29/5x as a rate of change
mylen [45]
The rate of change is -29/5x^2
8 0
3 years ago
Read 2 more answers
During 30 minutes on the treadmill, LaToya burned 20 calories per minute. What is the rate of change of the function that repres
Genrish500 [490]
The answer I believe is 10 calories per minute because 20 x30 =600 I did that because she burned 20 calories per minute so with that being said there’s 60 minutes is the maximum minutes any time can go to so you do 600 divided by 60 which equals 10 which means she burns 10 calories per minute hope this is right
3 0
4 years ago
24 is 4/5% of what number
docker41 [41]

Answer:

The number is 3000

Step-by-step explanation:

Is means equals

24 = 4/5 % *n

Lets change the percent to a decimal.  To change percent, we move the decimal to places to the left.

4/5= .8

4/5 % = .8%  = .008

24 = .008 *n

Divide  each side by .008

24/.008 = .008n/.008

3000 = n

7 0
3 years ago
Other questions:
  • Write the set of points greater than or equal to −5−5 but strictly less than 44, excluding 00, as a union of two intervals (if y
    13·1 answer
  • Write the greatest and smallest 4 digit number by using the digits 2,5,0,6​
    6·2 answers
  • How many times as great as 10% is 100%?
    11·2 answers
  • Which expression represents the composition [f o g o h](x) for the functions below? f(x) = –2x^4 g(x) = 4x – 6 h(x) = x – 1
    15·2 answers
  • HELPP ITS MY LAST QUESTION AND IM TIMED
    13·1 answer
  • Equation<br> Number of Solutions<br> 6(2.1 + 1) - 2 = 12.1 + 4<br> How many solutions does it have?
    5·1 answer
  • I needed to write this is point slope form which I am having some difficulty understanding. Please tell me if I am correct or in
    8·1 answer
  • The recreation center is hiring counselors for summer camp. They need four counselors for every 25 campers. If there are 140 cam
    14·1 answer
  • Show me how to do this on paper i need it right now
    10·2 answers
  • Rounding off to the nearest thousand<br><br> 1627=?????
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!