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
kupik [55]
3 years ago
15

If Sn=2^n-1what's the expression ofSn-1?​

Mathematics
1 answer:
Naya [18.7K]3 years ago
4 0

Answer:

S(n-1)=2^{n-2}

Step-by-step explanation:

Given that,

The value of S_n=2^{n-1}

We need to find an expression for S(n-1). To find it, put the value of n as (n-1). So,

S_{n-1}=2^{n-1-1}\\\\=2^{n-2}

Hence, the value of S(n-1) is equal to 2^{n-2}.

You might be interested in
A cube has a base area (B) of 49 in?. what is the volume?​
timofeeve [1]

Answer:

Base Area , B = 49\\side,a = \sqrt{49 }  = 7\\Volume, V = B* a = 49 * 7 = 343

5 0
3 years ago
The list price on slacks is $22, and the list price on jumpers is $37. If Petit’s Clothing Store orders 30 pairs of slacks and 4
Dmitry [639]
تزهابتزيخعثن26رباهاب تاب تابه تابعتين الالعاب هه تنبر ذهني
3 0
3 years ago
The answer to the problem to see what I did wrong
Llana [10]
You must first figure out what X is then plug it in to find Y

7 0
4 years ago
3(x-12)=15 what number is x fist to answer gets brainlest
Bingel [31]

Answer:

x = 17

Step-by-step explanation:

3(x-12)=15

->

x-12+12=5+12

7 0
3 years ago
Write the equation of the line that passes through the points (5,0) and (-6, -1).
jonny [76]

Answer:

The equation in point-slope form is: \mathbf{y=\frac{1}{11}x-\frac{5}{11} }

Step-by-step explanation:

We need to find equation of line in point slope form that passes through points (5,0) and (-6, -1).

The general equation of point slope form is: \mathbf{y-y_1=m(x-x_1)}

where m is the slope of line.

We need to know Slope m

Finding Slope m

Finding Slope m using formula: Slope=\frac{y_2-y_1}{x_2-x_1}

We have x_1=5, y_1=0, x_2=-6 \ and \ y_2=-1

Putting values and finding slope

Slope=\frac{-1-0}{-6-(5)}\\Slope=\frac{-1}{-6-5}\\Slope=\frac{-1}{-11}\\Slope=\frac{1}{11}

So , slope m is: \mathbf{m=\frac{1}{11}}

Using point (5,0) and slope m =1/22 the equation of point-slope form is:

y-y_1=m(x-x_1)\\y-0=\frac{1}{11} (x-5)\\y=\frac{1}{11}x-\frac{5}{11}

So, the equation in point-slope form is: \mathbf{y=\frac{1}{11}x-\frac{5}{11} }

3 0
3 years ago
Other questions:
  • if I took one and a half pills every day starting on the fourteenth and stopped on the twentieth how many would I have taken?
    12·1 answer
  • Point F is on line segment \overline{EG}
    13·1 answer
  • The formula F(C) = 9/5 C + 32 calculates the temperature in degrees Fahrenheit, given a temperature in degrees Celsius.
    13·2 answers
  • What is 2x-3 I have no idea what it is
    12·1 answer
  • What is -8 squre root 24k^3
    15·2 answers
  • Subtract 6 ounces from 3 pounds.
    9·1 answer
  • The sales tax on a one-half-carat diamond ring is $76. Find the purchase price of the ring (before tax) of the sales tax rate is
    11·1 answer
  • The Steelers beat the Seahawks by 10 points. The total points scored between both teams was 44. How many points did the Seahawks
    5·1 answer
  • Someone help please :) RANDOM ANSWERS WILL BE REPORTED NOT JOKING
    9·1 answer
  • Please help!!!!!!!!!!!!!!!!!! 2+3
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!