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
VMariaS [17]
4 years ago
9

What are the possible values of x in -11x^2 + 2x = 10?

Mathematics
1 answer:
vlabodo [156]4 years ago
8 0
        -11x² + 2x = 10
-11x² + 2x - 10 = 10 - 10
-11x² + 2x - 10 = 0
x = <u>-(2) +/- √((2)² - 4(-11)(-10))</u>
                     2(-11)
x = <u>-2 +/- √(4 - 440)</u>
               -22
x = <u>-2 +/- √(-436)
</u>             -22<u>
</u>x = <u>-2 +/- 2i√(109)
</u>              -22
x = <u>-2 + 2i√(109</u>)        x = <u>-2 - 2i√(109)</u>
             -22                            -22
x = ¹/₁₁ - ¹/₁₁i√(109)    x = ¹/₁₁ + ¹/₁₁i√(109)
<u />
You might be interested in
Which is the greater fraction<br>3/4 or 11/16​
NARA [144]

Answer:

3/4

Step-by-step explanation:

3/4 = 75%

11/16 = about 68%

Therefore, 3/4 is greater

5 0
3 years ago
How to change the fractions into equivalent fractions having the LCD 3/4
Alona [7]
Multiple the numerator and the denominator by the same whole number for example 3:4 x 5 = 15:20
4 0
3 years ago
Three consecutive integers whose sum is -147
suter [353]

Step-by-step explanation:

Let the first integer be x

2nd integer = x + 1

3rd integer = x + 2

x + x + 1 + x + 2 = -147

3x + 3 = -147

3x = -147 - 3

3x = -150

x = -150 ÷ 3

x = -50

The three consecutive integers are

-50, -49, -48

5 0
4 years ago
Evan, Claire, Jaya and Tim are running a 3 km relay race. Evan ran 7/8 of a km,
Vanyuwa [196]

Answer:

11/24

Step-by-step explanation:

7/8 + 11/12 + 3/4 + x = 3 km

7*3/8*3 = 21 / 24

11*2 / 12 * 2 = 22 /24

3*6 / 4*6 = 18/24

21/24 + 22/24 + 18/24 + x = 3

61 / 24 +  x = 3

x = 72/24 - 61/24

x = 11 / 24

Tim has to run 11/24 of the race

7 0
3 years ago
Identify each function that has a remainder of -3 when divided x+6
Sergeu [11.5K]

Answer:

D

Step-by-step explanation:

According to remainder theorem, you can know the remainder of these polynomials if you plug in x = -6 into them.

<em>So we will plug in -6 into x of all the polynomials ( A through D) and see which one equals -3.</em>

<em />

<em>For A:</em>

x^5 + 2x^2 - 30x + 30\\=(-6)^5 + 2(-6)^2 - 30(-6) + 30\\=-7494

For B:

x^4 + 4x^3 - 21x^2 - 53x + 12\\=(-6)^4 + 4(-6)^3 - 21(-6)^2 - 53(-6) + 12\\=6

For C:

x^3 - 10x^2 - 7\\=(-6)^3 - 10(-6)^2 - 7\\=-583

For D:

x^4 + 6x^3 - 10x - 63\\=(-6)^4 + 6(-6)^3 - 10(-6) - 63\\=-3

The only function that has a remainder of -3 when divided by x + 6 is the fourth one, answer choice D.

5 0
3 years ago
Other questions:
  • I don’t need an explanation I just need the answer
    13·2 answers
  • If \$1000 is deposited into an account that earns 3.25\% simple interest per year, how much money will be in the account after 7
    14·1 answer
  • State the property that is demonstrated: (3)(8) = (8)(3).
    13·1 answer
  • Write 40% as a fraction
    10·2 answers
  • A circle with radius 5 has a sector with a central angle of 9/10 pi
    5·2 answers
  • Please help this is due today!!
    15·1 answer
  • What is 6.02 x 10^-4
    11·2 answers
  • a wheel has diameter 84cm.During a journey the wheel make 800 complete revolutions. how many meter does it travel?
    14·1 answer
  • SIMPLE CONGRUENCE QUESTION, LOTS OF POINTS!
    6·2 answers
  • Arthur’s employer withheld $15987.76 in federal income tax. After completing his return, Arthur has determined that his tax is $
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!