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3 years ago

Please help!!

Mathematics

2 answers:

Lena [83]3 years ago

6 0

Answer:

4794

Step-by-step explanation:

bogdanovich [222]3 years ago

3 0

Answer:

Rent in 10th year = $5345.90

Step-by-step explanation:

Rent of apartment during first year = $1800 per month

But growth in rent with 11.5% per year will be represented by the exponential function,

Rent in 't'th year = $\text{Initial rent}(1+\frac{\text{Growth rate}}{100})^{\text{time}}$

= $1800(1+\frac{11.5}{100})^t$

= $1800(1.115)^t$

Therefore, rent during 10th year will be,

Rent in 10th year = $1800(1.115)^{10}$

= $5345.90

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Answer:

Not a function

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2 years ago

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

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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,

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Hence, the equation of line would be,

y = 11.84x - 32.71

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2 years ago

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Answer:

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3 years ago

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Step-by-step explanation:

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3 years ago

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Answer:

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Step-by-step explanation:

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2 years ago