The dot plots below show the test scores of sixth and seventh grade students

based on visual inspection of the dot plots witch grade if any appears to have the higher mean score
a. grade 6
b. grade 7
c. both groups show about the same mean score
d. no conclusion about mean score can be made from the data

50x5=$250

step-by-step explanation:

the height of the surface increases from the center out to the sides of the road

it is c!

system of linear equation

step-by-step explanation:

as given in the data

a= 20 , b= -12

let us suppose that it is a straight line equation

now we know the formula for the system of linear equation

b= ma + c )

here m is slope of a straight line which is equal to formula

m=   (ii)

and here c is a constant

now putting the value of a and b in equation (ii)

m=

m=

putting the value of a,b and m in equation (i) gives us

-12 = + c

-12=-12 + c

adding 12 to both sides

-12 +12 = -12 +12 +c

0 =c

or c=0

as the value of the constant is zero which gives us that it is a linear equation and this order pair satisfies the system of linear equations.

just go here

its what i use

step-by-step explanation: