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
velikii [3]
3 years ago
14

If a sequence us defined recursively by f(0)= 3 and f (n+1)= -f (n) +5 for n>_ 0 then f (2) is equal to?

Mathematics
1 answer:
ivann1987 [24]3 years ago
5 0
F(1) = -f(0) +5 = -3 +5 = 2
f(2) = -f(1) +5 = -2 +5 = 3

f(2) = 3

_____
The sequence appears to alternate between 3 and 2.
You might be interested in
What is the volume of this triangular prism??
zhannawk [14.2K]

Answer:

Step-by-step explanation:

the answer is 210 m (3)

3 0
3 years ago
Read 2 more answers
The points with coordinates (x, -1), (2,2), and (4,3) lie on the same line. What is the value of x?
borishaifa [10]

Find the slope of the line passing throught the points (2, 2) and (4, 3).

The formula of a slope:

m=\dfrac{y_2-y_1}{x_2-x_1}

Substitute:

m=\dfrac{3-2}{4-2}=\dfrac{1}{2}

If the point (x, -1) lie on the same line, then the slope of line passing through the points (2, 2) and (x, -1) the same:

Substitute:

m=\dfrac{-1-2}{x-2}=\dfrac{-3}{x-2}

We have the equation:

\dfrac{-3}{x-2}=\dfrac{1}{2}        <em>cross multiply</em>

(1)(x-2)=(-3)(2)

x-2=-6           <em>add 2 to both sides</em>

x=-4

<h3>Answer: x = -4.</h3>
7 0
2 years ago
In an algebra class last year, students who earned grades of A spent 4.7 hours more on homework per week than students who earne
Neko [114]
  <span>A = 4.7 + C 
where A represents the students who got A's, and C is the number of hours that the C-grade students spent on homework per week</span>
8 0
3 years ago
The legs of a right triangle are 12 cm and 16 cm. What is the length of the hypotenuse? 15 cm 17 cm 20 cm 28 cm
GalinKa [24]
Answer: 20 cm

To solve this, use the Pythagorean Theorem, a² + b² = c², where a and b are the legs of the right triangle, and c is the hypotenuse of the right triangle.
**The Pythagorean Theorem only works for right triangles.**

Substitute in the values.
a² +  b² = c²
12² + 16² = c²

Solve for c, the hypotenuse.
12² + 16² = c²               
144 + 256 = c²
400 = c²
c = √400
c = 20

7 0
3 years ago
Read 2 more answers
Is number 4 correct?
Strike441 [17]

Answer:

sure

Step-by-step explanation:

6 0
2 years ago
Other questions:
  • sam has a jar that contains 6 blue marbles and 5 violet marbles. he randomly draws one marble and then draws another marble .Wha
    11·1 answer
  • At a certain middle school, there are 26 students per teacher in every homeroom. Is the total number of students proportional to
    6·1 answer
  • What is the equation of a parabola with a vertex at (0,0) and a focus at (0. -5)
    14·1 answer
  • I need help solving x^2-2=7 by factoring
    5·1 answer
  • A deep-sea diver descends below the surface of the water at a rate of 60 feet each minute. What is the depth of the diver after
    10·1 answer
  • What is the area of the smaller rectangle?​
    13·2 answers
  • Simplify the expression using positive exponents.<br>​
    7·1 answer
  • PLZ HELP I really need help with this.
    5·1 answer
  • At the city museum, child admission is $5.20 and adult admission is $9.50. On Friday,133 tickets were sold for a total sales of
    15·1 answer
  • What is Ac in Centimeters?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!