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
lianna [129]
3 years ago
15

Given the function f(x)=-5x^2-x+20 find f(3)

Mathematics
2 answers:
DochEvi [55]3 years ago
8 0

Answer: - 28

Step-by-step explanation:

f(x) = -5x^2 - x + 20

To find f(3), we simply put x = 3 and then simplify

f(3) = - 5(3)^2 - 3 + 20

= -5(9) - 3 + 20

= -45 - 3 + 20

= -48 +20

= -28

f(3) = -28

Marizza181 [45]3 years ago
3 0
F(x) = -5x^2 - x + 20;

f(3) = -5*3^2 - 3 + 20 = -5*9 - 3 + 20 = -45 - 3 + 20 = -28;

You might be interested in
Is y=1 a function?
Pachacha [2.7K]
No, a function requires an input and output value
5 0
3 years ago
Use the diagram shown to find the height of the house. Round to the nearest hundredth.
elixir [45]

Answer:

46- 0

Step-by-step explanation:

30+16=46

46 is closer to 0 then it is 100

so 0 is the answer

5 0
2 years ago
Read 2 more answers
Help Me Plz!!!!!!!!!!!!!
Strike441 [17]

Answer:

a = 6\sqrt 3,\:\:b =12,\:\:c=6\sqrt 2

Step-by-step explanation:

by \: 30 \degree - 60 \degree - 90 \degree \: theorem \\  \\ 6 =  \frac{1}{2} b\\  \\ 6 \times 2 = b \\  \\ 12 = b \\  \\ \huge\red {\boxed {b= 12}} \\  \\ a =  \frac{ \sqrt{3} }{2} b \\  \\ a =  \frac{ \sqrt{3} }{2}  \times 12 \\  \\ \huge\purple {\boxed {a = 6 \sqrt{3}}} \\  \\ c =  \frac{1}{ \sqrt{2} } b \\  \\ c =  \frac{1}{ \sqrt{2} }  \times 12 \\  \\ c =  \frac{ \sqrt{2} }{2}  \times 12 \\  \\ \huge\orange {\boxed {c = 6 \sqrt{2}}} \\  \\

8 0
3 years ago
100 Points<br><br>Which angle is the angle of incident?
PilotLPTM [1.2K]

Answer:

angle c

Step-by-step explanation:

angle c is the angle of incidence.  It is the angle between the perpendicular  ( line that meets the surface at 90 degrees) and the ray that is coming in

8 0
3 years ago
Read 2 more answers
Natalie consumes only apples and tomatoes. Her utility function is U(x, y) = x 2y 8 , where x is the number of apples consumed a
Kamila [148]

Answer:

16 apples.

Step-by-step explanation:

U(x, y) = x^2y^8

MU_x =\frac{\partial U}{\partial x}  = 2xy^8\\MU_y = \frac{\partial U}{\partial x} = 8x^2y^7\\

Price of apples, Px=$4

Price of tomatoes,  Py=$3

Ratio of their Marginal Utilities

\frac{MU_x}{MU_y}  =  \frac{Px}{Py}

\frac{y}{4x}  =  \frac{4}{3}

y=\frac{16x}{3}

Since Natalie’s income is $320

320 = xPx+yPy

320=4x + 3*\frac{16x}{3} \\320= 4x+16x = 20x\\x=\frac{320}{20} = 16\\Also\\y=\frac{16x}{3}=\frac{16X16}{3}=\$85.33

Since x=16, Natalie will consume 16 apples.

6 0
3 years ago
Other questions:
  • Im doing this math assignment 7x-1&lt;20 i have no idea how to get am answer
    11·1 answer
  • There is 4.8% sales tax on all clothing items purchased. Danielle wants to buy a shirt, which costs $18.95. Danielle figures tha
    13·2 answers
  • Calculate the power needed to raise 32lb. A distance of 12 feet in 4 seconds
    7·2 answers
  • Identify the domain and range
    15·1 answer
  • The vertices of a hyperbola are located at (3, −6) and (3, 6). The foci of the same hyperbola are located at (3,−10) and (3, 10)
    12·1 answer
  • write an equation of the line that passes through (-1,7) and is parrallel to the line whose equation is y=-2x-5
    8·1 answer
  • Geometry need hell math genius
    14·1 answer
  • ( 10.2 -1)+(5.2 48 -8)
    7·1 answer
  • How man times can 2 go intp 9
    14·2 answers
  • There were 17 students reading a book. Eight students have finished. How many students are still reading the book?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!