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
astraxan [27]
3 years ago
5

Solve the equation x^3+2x^2-5x-6=0

Mathematics
1 answer:
Bezzdna [24]3 years ago
5 0
Solution is X=-1 , 2, -3
You might be interested in
HELP PLEASE ITS DUE IN 10 MIN Use algebraic strategies to solve for x.
mr Goodwill [35]

Answer:

x = 4, x ≠ -1

Step-by-step explanation:

√3x + 4 = x

(√3x + 4)² = x² (Square both sides to get rid of the radical.)

3x + 4 = x²

0 = x² - 3x - 4 (Set everything to 0 by moving everything to one side.)

0 = (x - 4)(x + 1) (Factor.)

x = 4   x = -1

Now we need to check for extraneous solutions:

√3(4) + 4 = 4

√12 + 4 = 4

√16 = 4

4 = 4

√3(-1) + 4 = -1

√-3 +4 = -1

√1 = -1

1 ≠ -1

-1 is an extraneous solution.

8 0
3 years ago
In 2013 number of students in a small school is 284.it is estimated that student population will increase by 4 percent
BaLLatris [955]

The situation can be modeled by a geometric sequence with an initial term of 284. The student population will be 104% of the prior year, so the common ratio is 1.04.

Let \displaystyle PP be the student population and \displaystyle nn be the number of years after 2013. Using the explicit formula for a geometric sequence we get

{P}_{n} =284\cdot {1.04}^{n}P

n

=284⋅1.04

n

We can find the number of years since 2013 by subtracting.

\displaystyle 2020 - 2013=72020−2013=7

We are looking for the population after 7 years. We can substitute 7 for \displaystyle nn to estimate the population in 2020.

\displaystyle {P}_{7}=284\cdot {1.04}^{7}\approx 374P

7

=284⋅1.04

7

≈374

The student population will be about 374 in 2020.

5 0
2 years ago
ALG TWO HELP ASAP?
Alexxx [7]

Answer:

Therefore the period of the sinusoidal wave = 3.14.

The amplitude of the function = 2.

Step-by-step explanation:

The period of a sinusiodal wave is given by the length of x axis which covers one full cycle of the wave, which one positive half-cycle and one negative half cycle.

From the graph we can see  that one of the cycles starts at -3.14 / 4 and ends at 3.14 \times 3/4.

Therefore we can sutract the start point value from the end point value to get the period

Therefore period  = (3.14 \times 3/4) - (-3.14 / 4) = (3.14 \times 3/4) + (3.14 / 4) = 3.14

Therefore the period of the sinusoidal wave = 3.14.

The amplitude of the function = 2.

6 0
3 years ago
Tracy is trying to justify a step in her paragraph proof. What is the property that she should use?
Kipish [7]
Symmetric property i think but i’m not sure
3 0
3 years ago
Mark’s Clothing store buys shoes for $20 and sells them for $70. Calculate the percent increase that the store charges.
Cloud [144]

Answer:

29%

Step-by-step explanation:

20 divided by 70 which is .285 which is .29

4 0
3 years ago
Other questions:
  • Solve r = (9–9) for p.
    10·2 answers
  • Pls answer ASAP will mark brainliest if correct
    13·2 answers
  • Last year, Bob used 10 bottles of shampoo and 8 bottles of conditioner. His sister, Kayla, used 7 bottles of shampoo and 6 bottl
    14·1 answer
  • PLEASE HELP ASAP 25 PTS + BRAINLIEST FOR RIGHT/BEST ANSWER
    5·1 answer
  • Represent the amount four tenths in four different ways
    13·2 answers
  • What is the exact volume of a circle with a radius of 1?
    9·2 answers
  • The sum of 6 consecutive integers is 519. What is the third number in this sequence?
    15·2 answers
  • ILL MARK AS BRAINLESS PLS
    15·2 answers
  • Plsssssssssss Help!!!!!
    10·1 answer
  • Convert 4.7 in. to centimeters and round to the nearest tenth
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!