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exis [7]
3 years ago
7

PLEASEEE HURRY

Mathematics
2 answers:
MAXImum [283]3 years ago
8 0
It is -1+3 if I’m correct
scZoUnD [109]3 years ago
5 0

Answer:

can you tell me the grade so I can help you please

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romanna [79]

Answer:

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Step-by-step explanation:

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2 years ago
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Write an equation for the relation.
NeX [460]

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the answer is f(x)= x-2

8 0
3 years ago
Am I right or wrong (don't answer the last one!)
S_A_V [24]

Answer:

1) Distributive Property of Multiplication (The terms are distributed)

2) Addition property of equality (Adding 14 to both sides)

3) Simplifying (We simplified the expression)

4) Division property of equality (Dividing both sides by 6)

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3 years ago
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Find the line y=a+bx which best approximates the data points
Vika [28.1K]

Answer:

y = 11.84x - 32.71

Step-by-step explanation:

Here, the given data points,

(−3,−70),(−1,−42),(1,−21),(2,−9),(4,14),

Let x represents the input value and y represents the output value,

So, the table that represents the given situation is,

x         -3            -1             1             2             4

y       -70          -42         -21         -9             14

By the above table,

\sum x=3

\sum y=-128

\sum xy = 269

\sum x^2=31

\sum y^2 = 7382

Let the equation of the line is,

y = bx + a

Where,

a=\frac{\sum y \sum x^2 - \sum x\sum xy}{n(\sum x^2)-(sum x)^2}

b=\frac{n\sum xy - \sum x \sumy}{n(\sum x^2)-(\sum x)^2}

n = number of data points = 5,

By substituting the values we get,

a = - 32.70547945 ≈ - 32.71,

b = 11.84246575 ≈ 11.84,

Hence, the equation of line would be,

y = 11.84x - 32.71

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3 years ago
Find the length of the darkened arc. leave your answer in terms of
VashaNatasha [74]

Answer:

a

Step-by-step explanation:

you can split nine into three

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