The data below shows the temperature of the water in a swimming pool over a two week period.

week 1

day temperature (°f)
monday 58
tuesday 48
wednesday 49
thursday 61
friday 58
saturday 51
sunday 39

week 2

day temperature (°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?

To find the mean, you add all of the data from one section (week 1), and then u divide the total # by however many # there was. So let's say the total # was 150, and there was 8 #. So divide 150/8. Repeat for the second one. Once u have the 2 numbers (which should be close to the numbers because it's the average) you subtract them. All u have to do is plug to #s in. Hope I helped :)

Answer: d. 39 cmin the diagram, the approximate length of the minor arc de is 39 centimetres.step-by-step explanation: the formula for the length of an arc in a circle is as displayed below.let the length of the minor arc de = xx = 2( pi )r × angle of sector / 360°from this, we will substitute the values given from the problem into the formula to obtain the length of the minor arc de.x = 2( pi )r × angle of sector / 360°r = radius = 25cmpi as an approximate value = 3.14angle of sector = 120°x = 2( 3.14 )( 25 ) × 120° / 360°x = 157 × 1 / 4x = 39.25x = 39 ( rounded to the nearest whole number as an approximate value )

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