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
attashe74 [19]
3 years ago
13

HELP evaluate the function: f(x)=-x^2-x+3 f(-4) show steps please

Mathematics
1 answer:
Fantom [35]3 years ago
4 0

put -4 where the x is

so

-4^2-(-4)+3

16 + 4 + 3

23 is the answer

You might be interested in
A ball is thrown straight up from the top of a building that is 400 ft high with an initial velocity of 64 ft/s. The height of t
Schach [20]

Answer:

This type of essay answer is pretty short.

You play out the equation and say what each part of the equation means.  The vertex in this case, because it's a downward facing parabola, is the highest point on the graph.  Now since they're kicking a ball, the vertex will be the highest point that the ball will go up to.

Hopefully this helps some.  For full points you'll probably have to add a bit of padding and further explanation.

Step-by-step explanation:

5 0
3 years ago
Which function in vertex form is equivalent to f(x) = x^2 + 6x + 3?
OlgaM077 [116]
f(x)=x^2+6x+3

Complete the square:

x^2+6x+a^2\implies a=\dfrac{6x}{2x}=3\implies x^2+6x+3^3

And we have:

f(x)=x^2+6x+3\\\\f(x)=x^2+6x+3^2-3^2+3\\\\f(x)=(x+3)^2-9+3\\\\\boxed{f(x)=(x+3)^2-6}

Answer B.

3 0
3 years ago
adult tickets at a football game cost $6 and student tickets cost $2. A total of $1776 was collected on 372 tickets. How many ad
postnew [5]

Answer:

258

Step-by-step explanation:

Set up the two equations needed (x is the adult tickets and y is the student tickets)

x+y=372

6x+2y=1776

Solve by elimination

-2(x+y=372)

=-2x-2y=-744

Cancel like figures:

-2x-2y=-744

6x+2y=1776

= 4x=1032

x=258

6 0
2 years ago
Read 2 more answers
4-7x=1-6x <br><br> Please explain why the answer is the answer and I’ll give brainlist
Mrac [35]

Answer:

3

Step-by-step explanation:

5 0
2 years ago
Emilio has to run 7 1/2 miles a week to train for the football team. If he runs 1 1/2 miles everyday , how many days will it tak
PilotLPTM [1.2K]

Answer:

5 days

Step-by-step explanation:

1/2 + 1/2 = 3 (2 days) times by 2 makes it 4 days and finally 5th day 7 1/2

4 0
3 years ago
Read 2 more answers
Other questions:
  • Find the product <br> -12 • (-2) <br><br> A. 10<br><br> B. 24 <br><br> C. -24<br><br> D. -14
    11·1 answer
  • You are getting ready for a family vacation. you decide to download as many movies as possible before leaving for the road trip.
    5·1 answer
  • Caroline is making some table decorations.
    14·1 answer
  • How many squares would have to be shaded so that<br> of the shape is shaded?
    11·1 answer
  • The length of a rectangular park is 20 feet longer than the width of the park. If the lenght of the park is 36 feet, what is the
    8·1 answer
  • Find the missing side lengths
    11·1 answer
  • How can the figure below be changed so that it has exactly one lines of symmetry?
    14·2 answers
  • Plss help... Dalvin's family took a road trip to Mount Rushmore. Dalvin fell asleep 44% of the way through the trip. If Dalvin f
    14·2 answers
  • Write as a single fraction in it's simplest form:
    9·1 answer
  • The______is the set of inputs For a fraction
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!