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Jet001 [13]
3 years ago
9

Find the recursive formula for 18, 15, 12, 9, . .

Mathematics
1 answer:
Lady bird [3.3K]3 years ago
5 0

Answer: a_{n}=a_{n-1}-3  ,  n\geq 2

Step-by-step explanation:

a_{1} = 18

The common difference = -3

Therefore :

a_{n}=a_{n-1}-3  ,  n\geq 2

check:

when n = 2

a_{2}= a_{1}-3

a_{2}=18-3 = 15

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Relationship B has a greater rate than Relationship A. This graph represents Relationship A.
tester [92]

Answer:

Rate in relationship A = (6 - 3)/(8 - 4) = 3/4 = 0.75

For Table A: Rate = (3 - 1.2)/(5 - 2) = 1.8/3 = 0.6

For table B: Rate = (3.5 - 1.4)/(5 - 2) = 2.1/3 = 0.7

For table C: Rate = (4 - 1.6)/(5 - 2) = 2.4/3 = 0.8

For table D: Rate = (2 - 1.5)/(4 - 3) = 0.5/1 = 0.5

Therefore, the correct answer is option C.

4 0
3 years ago
What is the coefficient in the expression 5 + 9y?
LenKa [72]

Answer:

yesyes

Step-by-step explanation:

7 0
3 years ago
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a washer and a dryer cost $970 combined . the washer costs $70 more than the dryer . what is the cost of the dryer ?
Reika [66]

Answer:

415

Step-by-step explanation:

970 divided by 2 = 485, 485 + 70 = 555

970 - 555 = 415, so your answer is 415

3 0
3 years ago
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I need help with this math homework pls
jolli1 [7]
-1/3, -1/5, 0, 1/8
u put the negative numbers to the left and positive ones to the right then since -1/3 is more negative than -1/5, -1/3 goes to the left and-1/5 goes next to it and then 0 and since 1/8 is the biggest it goes to the right
6 0
3 years ago
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Given rectangular prism ABCD. Choose all of the terms that best describe each of the sets of lines or points. Points D, G and J
Yuki888 [10]

Answer:

Two points are collinear when they lie on the same line. Points are collinear but not lines. Rather when two lines lie on the same plane we say they are coplanar.

Hence, line AB and CD are NOT collinear, so they are noncollinear and they are coplanar.

Two or more lines are said to be intersecting, when the lines meet at some point, when lines are not intersecting they are said to be parallel.

Recall that one of the properties of a rectangle is that opposite sides are parallel.

Notice that line AB and CB are the opposite sides of the rectangle ABCD.

Thus, line AB and CD are not intersecting but are parallel.

Therefore, the terms that best describe lines AB and CD are  

parallel  

noncollinear  

coplanar

Step-by-step explanation:

3 0
3 years ago
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