The data below shows the temperature of the water in a swimming pool over a two week period.
week 1
(°f)
monday 58°
tuesday 48°
wednesday 49°
thursday 61°
friday 58°
saturday 51°
sunday 39°

week 2
(°f)
monday 68°
tuesday 74°
wednesday 73°
thursday 75°
friday 70°
saturday 67°
sunday 63°
how many degrees greater is the mean temperature in week 2 than in week 1? a:

  18 °F

Step-by-step explanation:

The means are calculated in the usual way: add up the numbers and divide by the number of them. When there are a bunch of numbers, it is convenient to let a calculator or spreadsheet compute the mean for you.

In the attached, we see the mean for week 1 is 52°, and in week 2, it is 70°. The mean is 70° -52° = 18° greater in week 2.

answer: (1,3) and (-2,0) i think.

example 2 – simplify: step 1: completely factor both the numerators and denominators of all fractions. step 2: change the division sign to a multiplication sign and flip (or reciprocate) the fraction after the division sign; essential you need to multiply by the reciprocal. step 3 : cancel or reduce the fractions.