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motikmotik
4 years ago
10

What is 3 - 2x plus 4

Mathematics
2 answers:
jeka57 [31]4 years ago
8 0
3+4=7

so the answer is 7-2x
erica [24]4 years ago
5 0
3-2x+4=3+4-2x=\boxed {7-2x}
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9 9/10 + 6 7/10 add and reduce to lowest terms
stealth61 [152]
The lowest term would be 16.6
7 0
4 years ago
Peyton received a graduation gift from his grandparents of $12,700. He
arlik [135]

Answer:

Peyton's account will have $13,842.18 after a year.

Step-by-step explanation:

Given that Peyton received $ 12,700 and decided to invest it for a year in an account that grants an interest of 8.8% per year, compounded semiannually, to determine the amount of money that will be in said account after the passage of one year, it is necessary to perform the following calculation:

X = 12,700 (1 + 0.088 / 2) ^ 1x2

X = 13,842.18

Therefore, after a year has passed, Peyton's account will be $ 13,842.18.

7 0
3 years ago
1. Which graph represents a proportional relationship ​
stealth61 [152]

Answer:

A graph that has an originality.(0,0) (this is the main thing. More below!!)

Step-by-step explanation:

  • it might be positive or negative. it should also be linear.
  • it also should not have a y-intercept.( the point where the line crosses the y axis)
  • so for example a graph with an equation of y =3x or y=-3x is proportional. It has an originality since there is no y-intercept which is b in an equation. It also has a steady rate or slope of 3 which makes it linear.
3 0
3 years ago
a room has carpet pieces that are 4 feet by 2 feet the room holds 5 carpet Pieces by 9 carpet pieces what is the area of the roo
kipiarov [429]
It’s 2x4=8x5=40x9=360ft squared
6 0
4 years ago
Read 2 more answers
WILL GIVE BRAINLIEST IF CORRECT!!
vfiekz [6]

Answer:

\displaystyle y=-0.927x+13.63

Step-by-step explanation:

<u>Simple Linear Regression </u>

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
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