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
creativ13 [48]
3 years ago
11

WELPPP PLEASEEEEThis is hard Kahn academy

Mathematics
1 answer:
UNO [17]3 years ago
4 0

Answer:

B.

Step-by-step explanation:

The line shows that X is less than or equal to 1.

You might be interested in
Which second-degree polynomial function has a leading coefficient of –1 and root 5 with multiplicity 2?
PIT_PIT [208]
A second degree polynomial function has the general form:

                  \displaystyle{f(x)=ax^2+bx+c, where a\neq0.

The leading coefficient is a, so we have a=-1.

5 is a double root means that :

i) f(5)=0,
ii) the discriminant D is 0, where D=b^2-4ac.

Substituting x=5, we have

                                        f(5)=a(5)^2+b(5)+c,

and since f(5)=0, and a is -1 we have:

                                          0=-25+5b+c
thus c=25-5b.


By ii) \displaystyle{b^2-4ac=0.

Substituting a with -1 and c with 25-5b we have:
                                     
          \displaystyle{b^2-4ac=0
          \displaystyle{b^2-4(-1)(25-5b)=0
          \displaystyle{b^2+4(25-5b)=0
          \displaystyle{b^2-20b+100=0
          \displaystyle{(b-10)^2=0
          \displaystyle{b=10 


Finally we find c: c=25-5b=25-50=-25

Thus the function is        \displaystyle{f(x)=-x^2+10x-25


Remark: It is also possible to solve the problem by considering the form

f(x)=-1(x-5)^2 directly.

In general, if a quadratic function has leading coefficient a, and has a root r of multiplicity 2, then its form is f(x)=a(x-r)^2
5 0
3 years ago
Read 2 more answers
X+2y+1=0,2x-3y-12=0 solve by substitution method​
Kitty [74]

Answer:

Step-by-step explanation:

x=-1-2y

-2-4y-3y-12=0

-7y=14

y=-2

x=3

3 0
3 years ago
-8x - 4y = -24 <br><br> -3x + 7y =25<br><br>Solve.
andre [41]

Answer:

I need the right problem.

Please read the whole thing.

Step-by-step explanation:

Hi. For this problem you are going to combine like terms.

For these problems, if you need any more help, you can search up algebra calculators on google.

I tried the problem and it said that there was too many equal signs. So, I would check to see if you asked this question correctly. I would ask your teacher.

Stay safe during these times,

The guy who tired to answer your question

5 0
3 years ago
Read 2 more answers
Does anyone know??? ???
Sidana [21]

Answer: The answer is D.) -2 and I'm correct :)

Step-by-step explanation:(-3,0) and (-4,2)

M=y2-y1

x2-x1

M= 2-0= 2

-4-(-3) = -1 ^Both equal to -2

4 0
3 years ago
Super confused new topic please help
kumpel [21]

Answer:

1960cm squared

Step-by-step explanation:

in case you're still confused ask where you're still confused and I'll offer my assistance.good day.

5 0
2 years ago
Other questions:
  • which points are solutions to the system of inequalities shown below? y&gt;x+1 y&gt;3 x&lt;5 A.(1,5) B.(0,6) C.(5,6) D.(3,5) E.(
    7·1 answer
  • A county commissioner must vote on a resolution that would commit substantial resources to the construction of a sewer in an out
    10·1 answer
  • Nancy gets a Math assignment every 10 days. She gets a Science assignment every 12 days.
    12·2 answers
  • An aquarium is 60 cm long, 20 cm wide, and 30 cm high. What volume of water, in cubic cm, does the aquarium contain if it’s two-
    12·1 answer
  • Solve the inequality <br> e-2 &lt;0
    13·1 answer
  • Which of the following graphs represents a function?
    8·2 answers
  • Show all relevant steps.
    10·1 answer
  • Which expression is equivalent to 3(4y)<br> I WILL MARK BRAINLIEST
    14·1 answer
  • A laundry basket has 24 t-shirts in it. Four are navy,
    11·1 answer
  • 12(6x + 10) + x = 9x + 5(1 – x) can u solve this?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!