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
irga5000 [103]
3 years ago
14

Find the vertex for this function. f(x)=-2x^2+8x-11​

Mathematics
1 answer:
loris [4]3 years ago
3 0

\bf \textit{vertex of a vertical parabola, using coefficients} \\\\ f(x)=\stackrel{\stackrel{a}{\downarrow }}{-2}x^2\stackrel{\stackrel{b}{\downarrow }}{+8}x\stackrel{\stackrel{c}{\downarrow }}{-11} \qquad \qquad \left(-\cfrac{ b}{2 a}~~~~ ,~~~~ c-\cfrac{ b^2}{4 a}\right) \\\\\\ \left( -\cfrac{8}{2(-2)}~~,~~-11-\cfrac{8^2}{4(-2)} \right)\implies \left( 2~~,~~-11+\cfrac{64}{8} \right) \\\\\\ (2~~,~~-11+8)\implies (2~~,~~-3)

You might be interested in
Someone, please help! I'm really confused
11111nata11111 [884]

The correct pair is option E, which is:

FH ≅ FH - reflexive property

ΔGFH ≅ ΔEFH - SAS theorem

<h3>What is the SAS Congruence Theorem?</h3>

The SAS theorems states that two triangles are congruent if they have two pairs of congruent sides and a pair of congruent included angles.

<h3>What is the Reflexive Property?</h3>

The reflexive property of geometry states that an angle or line will always be congruent to itself.

In the two column-proof, since FH = FH using the reflexive property, then both triangles are congruent to each other by the SAS congruence theorem.

The missing pair of reasons that completes the proof are:

FH ≅ FH - reflexive property

ΔGFH ≅ ΔEFH - SAS theorem

Learn more about the SAS theorem on:

brainly.com/question/2102943

#SPJ1

4 0
2 years ago
Please help quick!!
luda_lava [24]
C
6x^2-13X-5=0
(3X+1)(2X-5)
3x-1=0
X=1/3. 2x-5=0. X= 5/2
7 0
2 years ago
Read 2 more answers
??????????!!!!!!!!!!!!!!
bulgar [2K]
The answer is 42 degrees
7 0
3 years ago
Read 2 more answers
Samantha is baking a cake. She needs 3/4 cup of butter for each cake. One stick of butter is 1/2 cup. How many sticks of butter
Gala2k [10]
She would need 6 sticks of butter.
6 0
3 years ago
Read 2 more answers
Will give brainliest
Snezhnost [94]
I believe it's the first option. Hope this helps.
3 0
3 years ago
Read 2 more answers
Other questions:
  • A worksheet has an area of 48 square inches. Its perimeter is 28 inches. What are the dimensions of the worksheet?
    5·1 answer
  • 5 hundreds × 10 = __50__ hundreds = __B__<br><br><br><br> Fill in blank B.
    8·1 answer
  • A marble is selected at random from a jar containing 4040 red​ marbles, 5050 yellow​ marbles, and 1010 green marbles. find the t
    15·1 answer
  • 2. Draw a right triangle with side lengths of 3, 4, and 5 units.
    9·1 answer
  • Which of the following best describes interval C on the graph shown?
    8·2 answers
  • A pound is approximately 0.45 kilogram. A person weighs 87 kilograms. What is the person’s weight, in pounds, when rounded to th
    14·1 answer
  • Eric and Charles are on their high school track and field team. Eric is participating in hurdles and the javelin. For every 5 ho
    13·1 answer
  • ASAP PLEASE HELP!!!!
    9·1 answer
  • THis is due in 28 minutes help ASAP
    7·2 answers
  • Find the nth term of the quadratic sequence
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!