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
Troyanec [42]
3 years ago
7

Graph f (x)=2x^2+32x+126

Mathematics
1 answer:
Ulleksa [173]3 years ago
4 0
The answer to the question above is x=-4.5
You might be interested in
Bob wants to create two pens, as shown in the figure. One pen is for a garden and it needs a heavy duty fence to keep out the cr
sattari [20]
\bf \textit{the area of either pen is 2744, thus}\\\\
A=xy\implies 2744=xy\implies \cfrac{2744}{x}=y

\bf \begin{array}{llll}
\textit{perimeter of the garden pen}\\\\
P=2(x+y)\\\\
P=2\left( x+ \cfrac{2744}{x}\right)\\\\
P=2x+\cfrac{5488}{x}\\
----------\\

\textit{cost of it}\\\\
C=15\left( 2x+\cfrac{5488}{x} \right)\\\\
C=30x+\cfrac{82320}{x}
\end{array}\qquad 
\begin{array}{llll}
\textit{perimeter of the dog pen}\\\\
P=2x+y\\\\
P=2x+\cfrac{2744}{x}\\
----------\\
\textit{cost of it}\\\\
C=5\left( 2x+\cfrac{2744}{x} \right)\\\\
C=10x+\cfrac{27440}{x}
\end{array}

notice... the dog's pen perimeter, does not include the side that's bordering the garden's, since that side will use the heavy duty fence, instead of the light one

so, the sum of both of those costs, will be the C(x)

\bf C(x)=\left( 30x+\cfrac{82320}{x} \right)+\left( 10x+\cfrac{27440}{x} \right)
\\\\\\
C(x)=40x+\cfrac{109760}{x}

so, just take the derivative of it, and set it to 0 to find the extremas, and do a first-derivative test for any minimum

8 0
3 years ago
What are the vertices of A'B'C' if ABC is dilated by a scale factor of 1/3?
Nataly_w [17]

Answer:

the answer is D (^_^ ) hope this helps

Step-by-step explanation:

7 0
3 years ago
If the diagonals of a quadrilateral divide each other proportionally then it is a​
Artist 52 [7]

Answer:

Step-by-step explanation:

trapezium

<h2>If the diagonals of a quadrilateral divide each other proportionally, then prove that the quadrilateral is a trapezium.</h2>
3 0
3 years ago
In the figure, PQ is parallel to RS. The legth of RP is 4 cm; the length of PT is 16 cm; the length of QT is 20 cm. What is the
Studentka2010 [4]
4/16  = SQ/20

SQ = (4*20) / 16  = 5 cm
6 0
3 years ago
Read 2 more answers
Mrs. Mitchell decided to grade her projects by giving each student 50 points if they turned in a project and then an additional
photoshop1234 [79]
Let c be the amount of parts the student answered correctly.  Suppose that s(c) is a function between c and the score of a student's project.  As the student initially receives a fixed 50 points for turning the project in and 5 points for each correct part, the function is initially:

s(c) = 5c+50

When the students receive 7 points for each correct part, the coefficient of c changes, as the amount of points received per correct answer increases.  Thus:

s(c) = 7c+50.
6 0
3 years ago
Other questions:
  • Which number line shows the solution to the quality -3x -5 &lt;-2
    5·1 answer
  • Starting at home, Emily traveled uphill to the hardware store for 60 minutes at just 6 mph. She then traveled back home along th
    12·2 answers
  • If the absolute value of x is 4, what is the value of x?
    15·1 answer
  • I need help solving this :/
    14·1 answer
  • What is the standard form equation of the line shown below?
    9·1 answer
  • The surface area of a cube is 294 cm2. Which statements are true about the same cube measured in square millimeters? Choose all
    8·1 answer
  • How do i factorise this equation<br> a²+7a+12
    15·1 answer
  • If the slope is 2 and the line goes through (3,-3) what is the equation?
    13·1 answer
  • A coach for a little league baseball team is ordering
    13·2 answers
  • Can anyone please answer this question thankyou.<br>simplify 6√3-4√3+2 <br><br>​
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!