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bogdanovich [222]
3 years ago
13

What is the recursive rule for the sequence? −22.7, −18.4, −14.1, −9.8, −5.5, ... an=an+1+4.3 , where a1=−22.7 an=an−1+4.3 , whe

re a1=−22.7 an=an−1−4.3 , where a1=−22.7 an=an+1−4.3 , where a1=−22.7?
Mathematics
2 answers:
egoroff_w [7]3 years ago
8 0
This is an arithmetic sequence with common difference 4.3

The rule is  an = an-1 + 4.3 where a1 = -22.7
balandron [24]3 years ago
4 0

Answer:

The correct option is 2.

Step-by-step explanation:

The given sequence is

−22.7, −18.4, −14.1, −9.8, −5.5, ...

Here first term is -22.7. It means

a_1=-22.7

The common difference is

d=a_2-a_1=-18.4-(-22.7)=-18.4+22.7=4.3

Since we know that

d=a_n-a_{n-1}

a_n=a_{n-1}+d

a_n=a_{n-1}+4.3

Therefore option 2 is correct.

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What type of number is −0.5/ −0.5
Ede4ka [16]

Answer:

\frac{ - 0.5}{ - 0.5}  = 1 \\

1 is a whole number, an integer, and rational.

Step-by-step explanation:

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7 0
2 years ago
HELP PLEASE 16 points
Lina20 [59]

Answer: 21

Step-by-step explanation: In these types of problems, you use inverse operations. The inverse operation for multiplying is dividing. 42 divided by 2 is 21.

5 0
3 years ago
Combine the like terms to create an equivalent expression <br><br> -k-(-8k)
Ira Lisetskai [31]
Answer:
8k

Step-by-step explanation:

1. Simplify: -k + 8k
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8 0
3 years ago
What is the equation of exponential regression equation? Round all numbers you your answer to three decimal places
ExtremeBDS [4]

Given:

The given values are:

a=0.2094539899

b=2.507467975

r^2=0.9435996398

r=0.9713905701

To find:

The exponential regression equation for the given values (Rounded to three decimal places).

Solution:

The general form of exponential regression equation is:

y=a\cdot b^x          ...(i)

Where, a is the initial value and b is the growth/decay factor.

We have,

a=0.2094539899

b=2.507467975

Round these numbers to three decimal places.

a\approx 0.209

b\approx 2.507

Substitute a=0.209, b=2.507 in (i) to find the exponential regression equation.

\hat{y}=0.209\cdot 2.507^x

Therefore, the correct option is C.

8 0
3 years ago
The difference of 8 and a number X is 36
castortr0y [4]
Is the answer supposed to be 28?
3 0
3 years ago
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