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
olga_2 [115]
2 years ago
13

Can someone help me with this

Mathematics
2 answers:
Leviafan [203]2 years ago
6 0
By illegal I'm guessing it means undefined, so when the denominator is equal to 0 because you can't divide by 0
you can either use the quadratic equation or sub the values from the multiple choice to find it. in this case it's easier to use the values given in the multiple choice
b^2-2b-8=0
b^2-2b=8
(-2)^2-2 (-2)=8
4--4=8
4+4=8
so -2 is one of the values
(-4)^2-2 (-4)=8
16+8=8
16+8=24
so -4 isnt one of the values
(4)^2-2 (4)=8
16-8=8
so 4 is one of the values
(-5)^2-2 (-5)=8
25+10=8
25+10=35
so -5 isn't one of the values
So because we know that the values are -2 and 4, and -5 and -4 aren't values, we can conclude the answer is B
sweet-ann [11.9K]2 years ago
4 0
As this is a fraction, we need to find values where the denominator is equal to 0.

b^2-2b-8=0
(b-4)(b+2)
b=4 \vee b=-2

So the answer is B.
You might be interested in
The diameter of a circular swimming pool is 15 feet. Find the circumference.
Nuetrik [128]
47.12
I did this last year :))
7 0
2 years ago
write the equation in slope intercept form of the line that passes through -1, 11 and is parallel to the graph of y = -8x + 3
lawyer [7]
<h2>Answer: The line from the question [ y = -8x + 3 ] passes through the point ( -1, 11 ). </h2>

<h3 /><h3>Step-by-step explanation: </h3>

<u>Find the slope of the parallel line</u>

When two lines are parallel, they have the same slope.

                 ⇒  if the slope of this line = - 8

                      then the slope of the parallel line (m) = - 8

<u>Determine the equation</u>

We can now use the point-slope form (y - y₁) = m(x - x₁)) to write the equation for this line:  

                               ⇒  y - 11  =  - 8 (x - (-1))                                

                                ∴  y - 11  = - 8 (x + 1)

We can also write the equation in the slope-intercept form by making y the subject of the equation and expanding the bracket to simplify:

                      since   y - 11  = - 8 (x + 1)

                                        y  = - 8 x  + 3

The line from the question [ y = -8x + 3 ] passes through the point ( -1, 11 ).

5 0
2 years ago
Using the Addition Method, find the value of x in the
allochka39001 [22]

Step-by-step explanation:

3x+2y=2------------1

-3x+5y=5-----------2

adding 1 and 2 we get

7y=7

y=1

and from (1),we get

3x+2×1=2

3x=0

x=0 is the required value of x.

8 0
3 years ago
You should be able to find this
Nastasia [14]

Answer:

\frac{1}{2}

Step-by-step explanation:

sin(cos^{-1} \frac{\sqrt{3} }{2} )

using the sides of the 30- 60- 90 triangle

with legs 1, \sqrt{3} and hypotenuse 2 , then

cos^{-1} \frac{\sqrt{3} }{2} = 30° and

sin30° = \frac{1}{2}

3 0
1 year ago
Convert 0.14 kilograms to grams
atroni [7]
Hey there, 0.14 kilograms is 140 grams, All I did was 0.14*1000 and that gave me 140
3 0
3 years ago
Read 2 more answers
Other questions:
  • How do you solve this problem using substitution and then check it?:<br><br>y= -3x-2 <br>2x+5y=16
    13·2 answers
  • Please help me with this
    14·1 answer
  • HELP ASAP PLEASE!!!!
    14·2 answers
  • The zeros of a quadratic function are 2 and 4 what is the vertex of the function
    13·1 answer
  • Help me please !!!!!!!
    9·2 answers
  • HELPPP MEE PLSSS<br><br> Find m∠2
    14·1 answer
  • Can someone please help me it’s timing me I’m confused
    14·1 answer
  • David can type a 50-page paper in 8 hours. Last month, David and Andy together typed a
    13·1 answer
  • Which number line shows the solutions to n &gt; —2?
    11·1 answer
  • Solve for the product of three and four sevenths multiplied by two fifths.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!