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2 years ago

What is 4 superscript 5 written in expanded form?

Mathematics

2 answers:

Masja [62]2 years ago

8 0

Answer:

4×4×4×4×4

Step-by-step explanation:

It is in expanded form.

elena55 [62]2 years ago

5 0

If this is an exponent, it would be 4 x 4 x 4 x 4 x 4 in expanded form.

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Please help me and I’ll give you brainiest!!!!!

algol [13]

Answer:

Step-by-step explanation:

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3 years ago

WILL GIVE BRAINLIEST IF CORRECT!!

vfiekz [6]

Answer:

$\displaystyle y=-0.927x+13.63$

Step-by-step explanation:

Simple Linear Regression

It a function that represents the relationship between two or more variables in a given data set. It uses the method of the least-squares regression line which minimizes the error between the estimate function and the real data.

Let's compute the best-fit line for the data

$x=\{1,5,6,12,15\}$

$y=\{14,11,4,2,1\}$

First, we find the sums

$\displaystyle \sum x=1+5+6+12+15=39$

$\displaystyle \sum y=14+11+4+2+1=32$

Then, we compute the averages values

$\displaystyle \bar{x}=\frac{39}{5}=7.8$

$\displaystyle \bar{y}=\frac{32}{5}=6.4$

We will also compute the sums of the cross-products and the sum of the squares

$\displaystyle \sum xy=(1)(14)+(5)(11)+(6)(4)+(12)(2)+(15)(1)=137$

$\displaystyle \sum x^2=1^2+5^2+6^2+12^2+15^2=1+25+36+144+225$

$\displaystyle \sum x^2=431$

We will compute Sxy and Sxx

$\displaystyle S_{xy}=\sum xy-\frac{\sum x\ \sum y}{n}$

$\displaystyle S_{xy}=137-\frac{(39)(32)}{5}$

$\displaystyle S_{xy}=-117.6$

$\displaystyle S_{xx}=\sum x^2-\frac{(\sum x)^2}{n}$

$\displaystyle S_{xx}=431-\frac{39}{5}^2=126.8$

The slope of the linear regression function is given by

$\displaystyle m=\frac{S_{xy}}{S_{xx}}=\frac{-117.6}{126.8}=-0.927$

The y-intercept ot the linear function is

$\displaystyle b=\bar{y}-b\bar{x}=6.4-(-0.927)(7.8)$

$\displaystyle b=13.63$

Thus the best-fit line is

$\displaystyle y=-0.927x+13.63$

The correct option is the last one

5 0

3 years ago

Now, suppose one of the roots of the polynomial function is complex. The roots of the function are 2 + i, and 5. Write the equat

rjkz [21]

The other commentor is right. The correct answer is 2-i
The second follow-up question is the second option
f(x) = (x – (2 + i))(x – (2 – i))(x – 5)
The third follow-up question has these three answers.
9x^2
25x
25

5 0

3 years ago

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How can she might choose a random sample of five students from her class of 35 students?

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Answer:

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Step-by-step explanation:

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3 years ago

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