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
vladimir1956 [14]
3 years ago
14

A parabola y=1/2x^2-4x+21 can you help me find the vertex form of this parabola please and thank you :)

Mathematics
1 answer:
ale4655 [162]3 years ago
3 0
Ok 
First factor out the first 2 terms as follows:-

y  = 1/2(x^2 - 8x) + 21

Now complete the square on x^2 - 8x:-

y = 1/2[ (x - 4)^2 - 16] + 21

y = 1/2(x - 4)^2 - 8 + 21

y = 1/2(x - 4)^2 + 13   Answer


You might be interested in
Plz help me .....simplify the ratio of 0,0064kg to 32 grams<br>​
Degger [83]

9514 1404 393

Answer:

  1/5

Step-by-step explanation:

1 kg = 1000 g so your ratio is ...

  \dfrac{0.0064\text{ kg}}{32\text{ g}}=\dfrac{0.0064\cdot1000\text{ g}}{32\text{ g}}=\dfrac{6.4}{32}=\boxed{\dfrac{1}{5}}

4 0
3 years ago
8,473,227 to the nearthest 100,000?
lys-0071 [83]

Answer:

8,500,000

Step-by-step explanation:

You round the 7 before the 4 to round it up to 5

Hope this is correct and helps x

8 0
3 years ago
Read 2 more answers
A football team had 50 players at the start of the season but then some players left the team. After that the team had 42 player
Shkiper50 [21]
50 players minus 42 equals 8. So, 8 people left the team.
4 0
3 years ago
Read 2 more answers
What points does y-4=-2(x-6) go through
kifflom [539]

Answer:

(6, 4)

Step-by-step explanation:

y-4=-2(x-6) <=> y-y1 = s(x-x1)

(x1, y1) => (6, 4)

5 0
3 years ago
4
riadik2000 [5.3K]

The answer is 78.24cm^2

4 0
3 years ago
Other questions:
  • What is half of 8 5/8
    12·2 answers
  • PLEASE HELP. Please show all work. Im giving 80 points to whoever answers it first.
    12·1 answer
  • Trail mix is sold in 1-pound bags. Mary will buy some trail mix And re-package it si that each f the 15 members of her hiking cl
    12·2 answers
  • What are the coordinates of (7,-5) and ( 3,3)
    9·1 answer
  • Asking this for a third time now
    12·1 answer
  • 1.The height of a tower is 50.75 m. Express it in cm and mm.
    8·2 answers
  • Please help me. look at the picture.
    15·1 answer
  • The circumference of a circle is 13π m. What is the area, in square meters? Express your answer in terms of π π.
    9·2 answers
  • Rational number between 3.623623 and 0.484848​
    9·2 answers
  • Find the quotient. If possible, rename the quotient as a mixed number or a whole number. Write your answer in simplest form, usi
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!