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
kupik [55]
3 years ago
5

Select the two values of x that are roots of this equation.

Mathematics
1 answer:
charle [14.2K]3 years ago
7 0

Answer:

x1 =  \frac{ - 3 -  \sqrt{33} }{2}  \\ x2 =  \frac{ - 3  +  \sqrt{33} }{2}

Step-by-step explanation:

x =  \frac{ - b +  -  \sqrt{ {b}^{2}  - 4ac} }{2a}   \\ =  \frac{ - 3 +  -  \sqrt{9 + 24} }{2}  \\ x1 =  \frac{ - 3 -  \sqrt{33} }{2}  \\ x2 =  \frac{ - 3  +  \sqrt{33} }{2}

You might be interested in
Help me with question 1 please
GrogVix [38]

Answer:

DB = 6

Step-by-step explanation:

See the attached figure to the question.

Since O is the center of the given circle, so AB and CD are diameters of the circle.

Hence, AO = CO = OD = OB = radius of the circle = 6

In Δ OAC, we have AO = OC. Hence, ∠ A = ∠C = 60° {Given that ∠OAC = 60°}

So, ∠ AOC will automatically become 60°. {As the sum of all the angles of a triangle is 180°}

So, Δ AOC is equilateral triangle.

Now, ∠ AOC = ∠ BOD = 60°  {Since, they are vertically opposite angles}

Now, in Δ BOD, we have DO = OB. Hence, ∠ D = ∠ B = 60° {As the sum of all the angles of a triangle is 180°}

So, Δ BOD is also an equilateral triangle.

So, DB = BO = DO = 6. (Answer)

8 0
3 years ago
Solve the inequality 4 - x < 9
viktelen [127]

Answer:

x > - 5

Step-by-step explanation:

4 - x < 9 \\  - x < 9 - 4 \\  - x < 5 \\ \red{ \boxed{ \bold{ x >  - 5}}}

7 0
3 years ago
Which expression can be used to determine the length of segment AB?
Stells [14]

Answer:

you need to provide a picture friend

3 0
3 years ago
Read 2 more answers
An Epson HR100 printer priced at $379 is sold for $319. What was the percent price reduction?
EastWind [94]

Answer:

The percent price reduction was 15.83%

Step-by-step explanation:

we know that

In this problem

$379 represent the 100%

so

using proportion

Find out what percentage represent the difference between the original price and the final price

\frac{\$379}{100\%}=\frac{\$379-\$319}{x}\\\\x=100(60)/379\\\\x=15.83\%

3 0
3 years ago
Coefficient of b in expansion of (3+b)^4
Margarita [4]
Are you sure you want ONLY the coefficient of b?  If you expand this, you will have b in 3 of 4 terms.

According to Pascal's Triangle, the coefficients of (a+b)^4 are as follows:

                             1
                        1    2    1
                   1      3    3     1
              1       4     6     4     1

So (a+b)^4 would be 1a^4 + 4a^3b + 6a^2b^2 + 4ab^3 + b^4

Here, you want (3 + b)^4.  Here's what that looks like:

3^4 + 4[3^3*b] + 6[3^2*b^2] + 4[3*b^3] + 1[b^4]

Which coeff did you want?
4 0
3 years ago
Other questions:
  • Best way to work out planet torrid take 6 years to complete one orbit , planet monde blanc takes 9 years in the year 2035 both p
    5·1 answer
  • Three pens and two notebooks cost 8.25. two pens and three notebooks cost $8.00. how much would two pens and two notebooks cost?
    8·1 answer
  • What is the product written in scientific notation? (5.91×10−3)⋅(8.7×1010)
    6·2 answers
  • Based on the graph of the functions, which of the following statements is true?
    10·1 answer
  • <img src="https://tex.z-dn.net/?f=1%2F5%20%C3%B7%203%20%3D%201%2F15" id="TexFormula1" title="1/5 &divide; 3 = 1/15" alt="1/5 &di
    10·2 answers
  • Please help me with these 3 questions!! Will mark Brainliest :)
    9·1 answer
  • I need help please and thank you<br> no links
    13·1 answer
  • (x + 7)(x + 4) simply
    8·2 answers
  • What is 1+1-1+1x0-1+1+1
    12·1 answer
  • Factor 81y+72.<br><br>Write your answer as a product with a whole number greater than 1.<br>help plz
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!