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julsineya [31]
3 years ago
10

(PLEASE HELP NEED ANSWER ASAP)

Mathematics
1 answer:
BlackZzzverrR [31]3 years ago
5 0

Answer:

C  a1= -2

    an = an-1 +3

Step-by-step explanation:

an = -2+ (n-1)3

What is the first term?  Let n=1

a1 = -2 + 0*3

a1 = -2


The difference between the  terms is +3  (coefficient on (n-1))

The second term is the first term +3

The third term is the second term plus 3

The next term is the previous term +3

so an = an-1+ 3

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Which of the following is an arithmetic sequence?
alexandr1967 [171]
Answer: Only the second sequence is arithmetic. 

Work:
An arithmetic sequence is a sequence in which there is a common value added or subtracted between each term in the sequence. 
The first option, -2, 4, -6, 8,... is not arithmetic because the terms switch back and forth between positive and negative signs meaning that there is no common value that can be added between each term. 
The second option, -8, -6, -4, -2,... is arithmetic because there is a common difference between each term which is +2.
The third option, 2, 4, 8, 16,... is not arithmetic but is, in fact, geometric. There is no common value that is added or subtracted between each term. 
8 0
3 years ago
the scatter plot shows the relationship between the cost of animal feed and its weight. which option best describes the associat
Ludmilka [50]

Answer: As the weight increases, the price increases

Step-by-step explanation: it’s the only one that actually makes sense

8 0
3 years ago
Which inequality is shown in the graph?
masha68 [24]

Answer:

D.

Step-by-step explanation:

the graph has a y intercept of -3

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try(1,1)

1<1-3

1<-3

it is false so shade the outside of the graph

hope it helps

7 0
3 years ago
Read 2 more answers
A baseball field is being constructed. The builders noticed that the batters would have the sun in their eyes when batting from
Leona [35]

Answer:

A' =(-y,x)

Step-by-step explanation:

Given

Represent point A as thus;

A = (x,y)

Required

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When a point is rotated counterclockwise, we start by switching the positions of x and y as follows:

Pos = (y,x)

Then, y is negated to give A'

A' =(-y,x)

5 0
3 years ago
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Represent the number of days by x. With this representation, the variable cost of the rental is 31.67x. The total cost is the sum of the fixed and variable costs. This value should not be more than $500. The equation below shows the relationship.
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Solving for x gives x ≤ 11.68
Thus, the maximum number of days to rent the car is only 11 days. 
6 0
2 years ago
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