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
vovikov84 [41]
2 years ago
6

What is the solutions to 0=x^2-x-6 two things ,,quadratic equationz,,,

Mathematics
1 answer:
natita [175]2 years ago
3 0

Answer:

x1=3. x2=-2

Step-by-step explanation:

x =  \frac{ - b +  -  \sqrt{b {}^{2} - 4ac } }{2a}

b=-1

a=1

c=-6

x =  \frac{ - ( - 1) +  -  \sqrt{ {( - 1)}^{2} - 4 \times 1 \times ( - 6) } }{2 \times 1}

x =  \frac{1 +  -  \sqrt{1 + 24} }{2}

x =  \frac{1 + -   \sqrt{25} }{2}

x1 =  \frac{1 + 5}{2}

x2 =  \frac{1 - 5}{2}

x1=3

x2=-2

x =  \frac{1 +  - 5}{2}

You might be interested in
Sum to n terms the series 7 +77 +777​
julia-pushkina [17]

Answer:

Step-by-step explanation:

=7 (1+11+111+1111......n)

=7/9 (9+99+999+9999....n)

=7/9 ((10-1)+(10^2-1)+(10^3-1)+....n)

=7/9 ((10+10^2+10^3...n)-(1+1+1+1.....n))

=7/9 ((10 (10^n-1)/(10-1))-n)

4 0
3 years ago
How many groups of 25 are there in 500
Elis [28]
500÷25

they are 20 groups
6 0
3 years ago
Read 2 more answers
A triangle has three different integer side lengths and a perimeter of 20 units. What is the max length of any one side?
Troyanec [42]
X + x+1 + x + 2 = 20
3x + 3 = 20
3x = 17 but can't start with x = 6 because 6+7+8 > 20,
so have start with 5 + 6 + 7 = 18 are the 3 sides.
3 0
2 years ago
14. The cost of 10 dozen of caps is Rs.800. How many caps can bebought for Rs.200.​
Mashcka [7]

Answer:

Step-by-step explanation:

10 dozen is equal to 120 so ratio is 800/120 or 80/12

same ration on the other side but 200/x.Cross multiply and u get 3

7 0
3 years ago
uppose germination periods, in days, for grass seed are normally distributed and have a known population standard deviation of 2
natka813 [3]

Answer: 0.701

Step-by-step explanation:

Formula :  EBM =z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}} , where \alpha= significance level , \sigma = Population standard deviation, n= sample size.

As per given,  n= 22

\sigma = 2

Critical z- value for 90% confidence level : z_{\alpha/2}=1.645

Then,

 EBM =(1.645)\dfrac{2}{\sqrt{22}}\\\\=(1.645)\dfrac{2}{4.690416}\\\\\approx0.701

Hence ,  error bound (EBM) of the confidence interval with a 90% confidence level= ± 0.701

5 0
3 years ago
Other questions:
  • Jordan’s class has 30 boys. If the students in his class, 60% are girls. How many girls are in Jonathan’s class?
    11·1 answer
  • Write an expression equivalent to 6 - 2x + 5 + 4x that only has two terms.
    9·1 answer
  • Rico is making 4 batches of salsa.EAxh batch needs 2/3 cup of corn.He only had a 1/3 cup measure.How many times must rico measur
    6·1 answer
  • Jessica is measuring two line segments. The first line segment is 30 cm long. The second line segment is 500 mm long. How long a
    12·2 answers
  • What is 69= 5(7-5r) + 4(r-2) show work
    15·1 answer
  • Karen buys a sweatshirt for 30$ she sale tax is 7%
    7·1 answer
  • I could rlly use sum help - Brainliest!!!!!
    14·1 answer
  • Write an expression equivalent to h^6/h^3 in the form of h^m
    9·1 answer
  • What is the are of the figure below radius 6in 6in 6in 6in
    11·1 answer
  • Need help pls<br>thank you in advance ​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!