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
Serga [27]
3 years ago
6

F(n+1)=-10f(n). If f(1)=1, what is f(3)?

Mathematics
1 answer:
lisov135 [29]3 years ago
6 0
-19 is the answer cuz 1-10-10 is -19.
You might be interested in
Here is the histogram of a data distribution. All class widths are 1.
Lera25 [3.4K]
It’s C. Since that’s the middle based on the diagram
6 0
2 years ago
2 1/2 + 3<br> As a fraction or a mixed number in simplest form. please Thankss ;p
puteri [66]
5 1/2 i think is the answer
5 0
3 years ago
Read 2 more answers
If a point C is inside
julsineya [31]

Answer:

The image is so blurred

Step-by-step explanation:

Please tell me all the measures used in your question or re ask your question and instead screen shot

3 0
2 years ago
Find the absolute extrema for f(x,y)=4-x^2-y^4+1/2y^2 over the closed disk D:x^2+y^2 is less than or equal to 1
algol [13]

Find the critical points of f(x,y):

\dfrac{\partial f}{\partial x}=-2x=0\implies x=0

\dfrac{\partial f}{\partial y}=y-4y^3=y(1-4y^2)=0\implies y=0\text{ or }y=\pm\dfrac12

All three points lie within D, and f takes on values of

\begin{cases}f(0,0)=4\\f\left(0,-\frac12\right)=\frac{65}{16}\\f\left(0,\frac12\right)=\frac{65}{16}\end{cases}

Now check for extrema on the boundary of D. Convert to polar coordinates:

f(x,y)=f(\cos t,\sin t)=g(t)=4-\cos^2-\sin^4t+\dfrac12\sin^2t=3+\dfrac32\sin^2t-\sin^4t

Find the critical points of g(t):

\dfrac{\mathrm dg}{\mathrm dt}=3\sin t\cos t-4\sin^3t\cos t=\sin t\cos t(3-4\sin^2t)=0

\implies\sin t=0\text{ or }\cos t=0\text{ or }\sin t=\pm\dfrac{\sqrt3}2

\implies t=n\pi\text{ or }t=\dfrac{(2n+1)\pi}2\text{ or }\pm\dfrac\pi3+2n\pi

where n is any integer. There are some redundant critical points, so we'll just consider 0\le t< 2\pi, which gives

t=0\text{ or }t=\dfrac\pi3\text{ or }t=\dfrac\pi2\text{ or }t=\pi\text{ or }t=\dfrac{3\pi}2\text{ or }t=\dfrac{5\pi}3

which gives values of

\begin{cases}g(0)=3\\g\left(\frac\pi3\right)=\frac{57}{16}\\g\left(\frac\pi2\right)=\frac72\\g(\pi)=3\\g\left(\frac{3\pi}2\right)=\frac72\\g\left(\frac{5\pi}3\right)=\frac{57}{16}\end{cases}

So altogether, f(x,y) has an absolute maximum of 65/16 at the points (0, -1/2) and (0, 1/2), and an absolute minimum of 3 at (-1, 0).

5 0
3 years ago
49^x/4-5 = 343^x/3 what does x equal
ratelena [41]
Answer 8 here is why because 34 x8 is 184
3 0
2 years ago
Other questions:
  • −4x+7y=3 solve for x and y
    11·1 answer
  • Susie divided 9-POUND bag of apples into 5 equal piles. how many pounds of apples are in each pile
    8·1 answer
  • Bus A and Bus B leave the bus depot at 4 pm. Bus A takes 15 minutes to do its route and bus B takes 35 minutes to complete its r
    6·1 answer
  • What is the answer to this?
    11·1 answer
  • Which expression is equivalent to the given expression? 17x−32x
    6·2 answers
  • Omg...I don't get this, pleases help me..anybody??
    12·1 answer
  • Steve's bedroom measures 12 feet by 13 feet. Ricardo's bedroom measures 8 feet by 14
    8·1 answer
  • 5. Write 2/3 and 3/4 as equivalent fractions using a common denominator.​
    6·2 answers
  • HELP HELP HELP HELP help help
    9·1 answer
  • each student at madison high school studies exactly one foreign language. Three-fifths of the students takes Spanish and one-fou
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!