a class of 25 students took a spelling test. two students scored 100 on each test nine students scored 95 on each test, 10 students scored 90 on each test, 3 students scored 80 on each test and one student scored 70 what is the average score of the spelling test rounded to one decimal place?

d

step-by-step explanation:

d

from the figure we get,

the x axis shows   the months and,

the y-axis shows the number of satisfied customer.

each line or each cell in upward direction (y-axis) shows 500.

the appropriate scale for the y - axis is: -

a = 2000 customers

b = 4000 customers

c = 6000 customers

d = 8000 customers

e = 10000 customers

f = 12000 customers

g = 14000 customers

x =±sqrt(1/3)

step-by-step explanation:

x+4/6x=1/x

multiply each side by 6x to get rid of the fractions

6x*(x+4/6x)=1/x*6x

distribute

6x^2 +4 = 6

subtract 4 from each side

6x^2 +4-4 = 6-4

6x^2 =2

divide by 6

6x^2/6 = 2/6

x^2 = 1/3

take the square root of each side

sqrt(x^2) = ±sqrt(1/3)

x =±sqrt(1/3)

the volume is the product of the area of the base, 3x(3x+4), and the height, 3x-1

step-by-step explanation: