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MrRa [10]
3 years ago
7

Which graph represents the sequence: 80, -40, 20

Mathematics
1 answer:
ANEK [815]3 years ago
8 0
<span> 80/-40=-40/20=-2, 
the sequence: 80, -40, 20 is a geometric sequence
its general formula is Vn+1 = q Vn, where q= -2,
if we put </span>Vn+1 = f(x)
<span>               Vn = x 

so we have f(x)= -2x so the graph that represents the sequence is graph of linear equation

</span>
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If there are 5 levels of Factor A and 7 levels of Factor B for an ANOVA with interaction, what are the interaction degrees of fr
emmasim [6.3K]

Answer:

<h3>C. 10</h3>

Step-by-step explanation:

let n1 be the degree of freedom of factor A

Let n2 be the degree of freedom of factor B

If there are 5 levels of factor A, then n1 = 5

If there are 7 levels of Factor B then n2 = 7

The interaction between the degrees of freedom is expressed using the formula;

df = (n1 - 1)+(n2 - 1)

df = n1 -1 + n2- 1

df = n1+n2 -2

Substitute n1 and n2 and get df

df = 5+7-2

df = 12-2

df = 10

Hence the interaction  degree of freedom is 10

7 0
3 years ago
Julio says, "If you subtract 17 from my number and multiply the difference by - 3, the result is
Ksju [112]

Answer:

30

Step-by-step explanation:

first, create two equations.

let x = Julio's number and y = answer for Julio's number substrates 17

x - 17 = y \\ y ( - 3) =  - 39 \\

by using substitution method, you will get

x = 30 \\ y = 13

so the answer is 30

4 0
3 years ago
In an orchestra the ratio of trombones to violas is 1 to 3.
Alchen [17]
Not entirely sure about question a... but b would be (lol) 27


Violas     Trombones

1                   3 
2                   6
3                   9
4                   12 
5                    15
6                    18
7                     21
8                     24
9                      27 trombones in all

8 0
3 years ago
Is this right idk but i need work fir it
bija089 [108]

Answer:

The answer is C 5/4

Step-by-step explanation:

When lines are parallel and you know there is a scalar factor, make the ratio by putting the original over the dilation 15:12 or 15/12 this is the ratio and after you need to reduce by dividing by the greatest common factor. 15 and 12's GCF is 3 so (15/3)/(12/3) = 5/4.

7 0
3 years ago
What is the domain and range to this problem?
prohojiy [21]

Answer:

Domain is -5,4       Range is -4, 5

Step-by-step explanation:

Domain is the two ends of the arrows on x

Range is Y

6 0
3 years ago
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