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3 years ago

The table shows the shipping costs for items of different values.

Mathematics

2 answers:

ASHA 777 [7]3 years ago

6 0

We can plot the given points on the xy plane to get the strength and direction of the correlation.

There will be two types of correlation.

If the data of the plot show a positive slope of the estimated line then it will be a positive correlation.

Now a correlation value lie between 0 to 1 if it is very close to 0 like 0.1 , 0.2 then we can say the correlation is weak psitively correlated. and if it will be close to 1 like 0.8 or 0.9 then the correlation will be strong.

Similarly if slope of the estimated line will be negative then it will be a negative correlation.

From the attched scatter plot notice that the slope is positive because as x is increasing then y is also increasing.

We can draw a best fit line on this plot .

So, the model show a a strong positive correlation.

Rainbow [258]3 years ago

3 0

Answer:

A strong positive correlation

Step-by-step explanation:

Since the dependent variable increases as the independent variable increases, this is a positive correlation.

Plotting these points, we can see that they form a nearly straight line. This makes it a strong correlation.

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Suppose you have line AB on a coordinate plane located at A(-3,-4) and B(5,-4). Under a dilation centered at (9,0), line AB

masya89 [10]

Answer:

$\dfrac{1}{4}$

Step-by-step explanation:

Center of dilation: O(9,0).

Line AB with A(-3,-4) and B(5,-4) is dilated with the scale factor k and center of dilation at O to form line A'B' with A'(6,-1) and B'(8,-1).

Then

$OB'=kOB\\ \\OA'=kOA$

Since

$OB'=\sqrt{(8-9)^2+(-1-0)^2}=\sqrt{1+1}=\sqrt{2}\\ \\OB=\sqrt{(5-9)^2+(-4-0)^2}=\sqrt{16+16}=4\sqrt{2},$

then

$\sqrt{2}=k\cdot 4\sqrt{2}\\ \\k=\dfrac{1}{4}$

6 0

4 years ago

G=h(t) + p(c) is an equation that represents the gross pay of a server: Gross pay = hourly wage (time worked) + percent tip (cos

rusak2 [61]

Answer:

$105.5 for 16 hours at $6.59 per hour

Step-by-step explanation:

form the equation given, G=h(t) + p(c)

where G=Gross pay,

h= hourly wage

t=time worked

p=percent tip

c=cost of customer meals

we determine the gross pay by first determining the independent variables

h=$4.25, t=16 hours,

$p=15%of c\\p=\frac{15}{100}*250 \\p=37.5$

if we substitute values, we arrive at

$G=h(t)+p(c)\\G=4.25(16)+37.5\G=68+37.5\\G=105.5$

to determine the per hour gross pay we have

105.5/16

hourly gross pay,G=$6.59

3 0

3 years ago

nick has$7.00.Bagels cost $0.75 each,and a small container of cream cheese costs $1.29. write an iquality to find the number of

Arte-miy333 [17]

Let Nick can buy x number of bangels and y number of

6 0

1 year ago

Simplify 8(x + 3) - 2x. Answer options: A) 6 x + 3 B) 7 x C) 6 x + 24

s344n2d4d5 [400]

Answer:

Expand the bracets then simplfy and then factorise

4 0

3 years ago

Read 2 more answers

Solve the system by graphing

Evgesh-ka [11]

Answer:

(-1,2)

Step-by-step explanation:

3x+5=-5x-3

3x+5x=-5-3

8x=-8

x=-1

y=3(-1)+5=2

y=-5(-1)-3=5-3=2

3 0

3 years ago