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jeyben [28]
3 years ago
5

What is the 4th term in the sequence b(n)=1(-2)^n-1

Mathematics
1 answer:
mel-nik [20]3 years ago
8 0
b(n)=1(-2)^n-1

When n = 4, 
b(4)=1(-2)^4-1

b(4)=16-1

b(4)=15

-------------------------------------------------------------

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

When n = 4
b(4)=1(-2)^{4-1}

b(4)=1(-2)^3

b(4)=1(-8)

b(4)=-8

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Line passing through the point (4,-7) and has slop of 3
ElenaW [278]
Aha! I love these types of questions. This is where you are going to use point-slope form!

As a reminder...point slope form is y - y^1 = m(x-x^1)

So if we have our coordinates (4, -7) -- 4 would be x^1 and -7 would be y^1 -- now you need to plug them in.

But remember m = slope.

y + 7 = 3 (x - 4) -- now convert into standard form.

Standard form: y = 3x - 19

7 0
4 years ago
A number , x,rounded to 1 decimal place is 3.7 what is the error interval for x
Phantasy [73]
<h2>Answer:</h2>

The error interval for x is:

                  [3.65,3.74]

<h2>Step-by-step explanation:</h2>

The number after rounding off is obtained as:

                          3.7

We know that any of the number below on rounding off the number to the first decimal place will result in 3.7:

   3.65     3.66    3.67    3.68    3.69    3.70    3.71   3.72    3.73    3.74

( Because if we have to round off a number present in decimals to n place then if  there is a  number greater than or equal to 5 at n+1 place then it will result to the one higher digit  at nth place on rounding off and won't change the digit if it less than 5 )

         Hence, the error interval is:

             [3.65,3.74]

     

8 0
3 years ago
(1/4)^4<br> What is the answer
amm1812
The answer is 1/256

Hope this helps!!
6 0
4 years ago
Hey! i’ll give brainliest please help.
gavmur [86]

Answer:

A. China

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Mike buys breakfast for $8.23. If sales tax is 9%, how much does he pay in tax? How much does he pay in total?
Lina20 [59]

Answer:

9% of $8.23=

0.09x$8.23=$0.74 (tax)

$8.23+$0.74=$8.97 (total)

Step-by-step explanation:

4 0
3 years ago
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