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
alexgriva [62]
4 years ago
15

A sequence is defined by the recursive function f(n + 1) = one-halff(n). If f(3) = 9 , what is f(1) ?

Mathematics
2 answers:
almond37 [142]4 years ago
9 0

Answer:

d.) 81

Step-by-step explanation:

f(2) would be 27 and 27x3 is 81.

81/3=27

27/3=9

Viefleur [7K]4 years ago
6 0

Answer:

81

Step-by-step explanation:

For the recursive function, f(n+1) = one-half(n)

Thus, when n = 2,

f(3) = 9

If n = 1,

f(2) = 9×3

f(2) = 27

If n = 0,

f(1) = 27 ×3

f(1) = 81

You might be interested in
Solve for x: two thirds(x − 2) = 4x.
Sveta_85 [38]

Answer:

x =  - 0.4

Step-by-step explanation:

\frac{2}{3} (x - 2) = 4x

Expand with the distributive rule:

\frac{2}{3} x -  \frac{2}{3}  \times 2 = 4x

\frac{2}{3} x -  \frac{4}{3}  = 4x

Add 4/3 to both sides:

\frac{2}{3} x = 4x +  \frac{4}{3}

Subtract 4x from both sides

- \frac{10}{3} x =  \frac{4}{3}

- 10x = 4

x =  - 0.4

5 0
3 years ago
PLZ HELP NOW! Mandy earns money based on how many hours she works. The following table shows Mandy's earnings. Hours 1 2 3 Earni
vampirchik [111]

Answer:

In khan academy, just plot the points and the answer is yes.

Step-by-step explanation:

Use the table to plot the points and you'll figure out that it's proportional- so the answer to the question below is yes. Doesn't need too much explaining.

8 0
3 years ago
Urgent please help!!
wolverine [178]

Answer:

i think it would be B because if AC= 80 and thats like the distane between then abc would be 80 if im thinking right

Step-by-step explanation:

but  hey if im wrong ill have my friend punch me in the arm to make it even

4 0
3 years ago
Solve the absolute value equation. <br>3=|6-x|​
kvasek [131]

Answer: well it's correct-

Step-by-step explanation: it shows that e equals to 6-x, x would be 3 so then the problem would still be correct (3=|3|) and |3| just equals, well, 3.

8 0
3 years ago
If f(x)=4/x+2 and g is the inverse of f, then g'(10)=​
evablogger [386]

Answer:

The value of g'(10)=\frac{(-1)}{16}

Step-by-step explanation:

Given function is f(x)=\frac{4}{x} + 2

Take f(x)=y

y=\frac{4}{x} + 2

Subtract 2 from both side.

y-2=\frac{4}{x}

x=\frac{4}{y-2}

The inverse of f(x) is written as \frac{4}{y-2}

It is said as g is inverse of f

g(y)=\frac{4}{y-2}[/tex]

g(y)=\frac{4}{y-2}

g(10)=\frac{4}{10-2}

g(10)=\frac{1}{2}

Differentiating both sides we get,

g'(y)=\frac{4(-1)}{(y-2)^{2}}+0

g'(y)=\frac{(-4)}{(y-2)^{2}}

To find g'(10)=\frac{(-4)}{(10-2)^{2}}

g'(10)=\frac{(-1)}{16}

5 0
3 years ago
Other questions:
  • How would you answer this?
    13·1 answer
  • 12 less than 7 times a number x
    7·1 answer
  • Howard bought 3/5 pounds of granola. He divided the granola evenly among 4 friends. How much granola did each friend get?
    8·1 answer
  • A company has 3,330 meters of canvas to make tents. If
    5·1 answer
  • If f(x)= -3x + 1, then f^-1(x)=
    15·1 answer
  • Module 3 dba flvs mr McDonald I need it pronto
    11·1 answer
  • Which set of sides would make a right angle
    9·1 answer
  • Select the correct answer. Lisa collected leaves from different trees for a science project. Every day for a week (7 days), she
    7·1 answer
  • HELP PLS. Due in 10 mins
    12·1 answer
  • Which of the following trigonometric ratios are correct?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!