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Otrada [13]
2 years ago
14

PLEASE HELP!!! WILL MARK BRAINLIEST!!

Mathematics
2 answers:
slega [8]2 years ago
8 0

Answer:

A

Step-by-step explanation:

I’m pretty sure since you’ve taken a cube from the original cube and relocated it, that means is not part of the surface area anymore.

I could be wrong tho lol

AlekseyPX2 years ago
6 0

Answer:

i think it is b

Step-by-step explanation:

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Put these number in order from least to greatest 6/40 11/20 -7/25 6
egoroff_w [7]

Answer:

-7/25, 6/40, 11/20, 6

Step-by-step explanation:

4 0
3 years ago
A decimal in which a schedule or is a sequence of digits keeps repeating
Vitek1552 [10]
The answer would be a repeating decimal 
8 0
3 years ago
A student is assessing the correlation between the number of workers in a factory and the number of units produced daily. The ta
lukranit [14]

The number of units produced increases from 2 to 452 as the number of factory workers increases from 0 to 90, which gives;

Part A:

  • Yes there is a strong positive correlation

Part B:

  • The function is <em>y</em> = 5•x + 2

Part C:

  • The slope indicates the number of units produced by each worker daily

  • The y-intercept indicates that two units can be produced without workers.

<h3>How can the existence of a correlation and the best fit function for the data be found?</h3>

Part A:

The correlation is the relationship between variables based on statistical data.

From the given table, the difference between consecutive terms of the <em>x </em>and y-values are constant, therefore as the x-values increases, the corresponding y-value increases.

Change in x-values, ∆x = 10 - 0 = 20 - 10 = 30 - 20 = 10

Change in y-values, ∆y = 52 - 2 = 102 - 52 = 152 - 102 = 50

Therefore;

  • There is a strong positive correlation between the number of workers, <em>x</em>, and the number of units produced, <em>y</em>.

Part B:

Given that the rate of change of the x-values is constant, and the rate of change of the y-values is a constant, the function relating the <em>x </em>and y-values is a linear function, which can be found as follows;

Slope of the equation, <em>m </em>= ∆y/∆x

Which gives;

m = 50/10 = 5

y - 2 = 5•(x - 0)

The function that best fits the data is therefore;

  • y = 5•x + 2

Part C:

The slope of the function is the coefficient of the variable <em>x </em>in the equation, <em>y </em>= m•x + c

  • The slope of the plot, 5, indicates that each worker produces 5 units daily

The y-intercept of the function is the value of the constant term, c, in the equation, y = m•x + c

  • The y-intercept of the linear equation, y = 5•x + 2, which is 2, indicates that the initial number of units of products at the factory before workers arrive is 2.

Learn more about finding relationship between variables here:

brainly.com/question/4219149

#SPJ1

7 0
1 year ago
Please help.. I’m stuck on this question
s2008m [1.1K]

Answer: The answer is 1

Step-by-step explanation: The distance between -7 and -3 is 4 then half the distance in between -7 and -3 is going to be -5 because we just clarified that the distance between -7 and -3 is 4 so we did 4/2 and got 2 so we can figure out whats the distance between each point. Now that we figured that out we can determine what value the blue dot is if the value between each point is 2 then we can make out what the rest of the points on the line. If we from -3 to the blue point that would be 1.

4 0
3 years ago
Whoever helps me is my saviour! I need this in by tomorrow!
Alenkasestr [34]

Answer:

1) \frac{7}{8}+\frac{2}{5}=\frac{7\times5+2\times8}{40}=\frac{35+16}{40}=\frac{51}{40}.

2) 2\frac{1}{3}\times \frac{1}{4}=\frac{7}{3}\times\frac{1}{4}=\frac{7}{12}

hence, answer is 7/12.

3) We have to divide £72 in the ratio 2:3:1

the total of the ratio is=2+3+1=6

so on dividing 72 into 6 parts we have 72/6=12

First '2' parts=2×12=24

second '3' part=3×12=36

last '1' part=1×12=12

so dividing £72 in the ratio 2:3:1 is: £24,£36 and £12

4) 39 people out of 65 have blonde hair.

Number of people who do not have blonde hair=65-39=26

percentage people who do not have blonde hair is given by:

=\frac{26}{65}\times100\\ \\=40%

Hence, percentage people who do not have blonde hair is 40%

5) 20% of 90= (20/100)×90

                       =18

Hence, 20% of 90 is 18.

6) Factorise

  2x^2+18x^3=2x^2(1+9x)\\\\2x^2+18x^3=18x^2(x+\frac{1}{9})

7) Expand

(y-8)(y-6)=y(y-8)-6(y-8)=y^2-8y-6y+48\\\\(y-8)(y-6)=y^2-14y+48

8)

x^2+4x+3=x^2+x+3x+3=x(x+1)+3(x+1)=(x+3)(x+1).

9)

y^{0}=1

10)

0.0342=3.42\times10^{-2}

11) x= -4 y=3

and z=4 x-y^3

z=4×(-4)-3^3

z= -43

12) y+2x=x-2\\\\2x-x=-y-2\\\\x=-y-2

13) 8-7x=22\\\\7x=8-22\\\\7x=-14\\\\x=-2

Hence x= -2

14) 5,10,15,20,....a_{1}=5=5\times1 , a_{2}=10=5\times2 , a_{3}=15=5\times3,........,a_{n}=5n=5\timesn

Hence,  nth term is 5n.

15) (63×128)/32.9=245.106.

16) 938×21=19698.




8 0
3 years ago
Read 2 more answers
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