Monthly Water Bills Dec Apr May June July Aug Sept Oct Nov Jan Feb Mar $ 46 $ 44 S44 $ 40 $ 42 $ 40 $ 38 S48 $ 50 $ 58 s62 $ 56 6. Write the formula for the mean water bill for the entire year using sigma notation and determine that mean. Round your answer to the nearest cent 7. Write the formula for the mean water bill for the first 6 months of the see using sigma notation and determine that mean. Round your answer to the 8. Write the formula for the mean water bill from April through November using sigma notation and determine that mean. Round your answer to the nearest nearest cent. cent. 9. Write the sigma notation mean formula for the consecutive 3-month period that would have the highest mean of the year. Use the following table to answer questions 10-12. Elizabeth wants to change cell phone plans. Before contacting the service provider, she makes a table of her cell phone minutes used over the course of a week.

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10

given : the shape of his satellite can be modeled by   where x and y are modeled in inches.

now,the given equation   is a equation of parabola.

here, coefficient of x is positive, hence the parabola opens rightwards.

on comparing this equation with standard equation , we get

in standard equation, coordinates of focus=(0,m)

thus for given equation coordinates of focus=(0,1.5)

step-by-step explanation:

30.5*10=350$

you have to multiply the number without the decimal point then add it later but if its tenn u must move the place value of the decimal point 1 to the right.

answer: h=5.6 i don't really know how to put into words, so i though i would let you do that. i hope i was able to some

step-by-step explanation:

18 = 6(h)+1/2

18 = 6h+1/2

18-1 = 6h/2

17 = 3h

17/3 = h

h = 5.6