1.) The two circles have diameters of 1 000 mm and 500 mm. (Not to scale). 1.1 What is the scale factor of the small circle to the big circle?
1.2 What is the area factor of the big circle to the small circle?
2.) The two triangles are similar. (Not to scale.) The length of the base of the bigger triangle is 30 mm and that of the smaller triangle is 18 mm. The height of the bigger triangle is 20 mm.
2.1 Calculate the height of the smaller triangle.
2.2 Calculate the area of the bigger triangle.
2.3 Use the area factor to find the area of the smaller triangle.
3.0
3.1 The ratio of the area of two circles is 16:25. What is the ratio of their diameters?
3.2 What is the radius of the smaller circle if the larger circle has an area of 1 257 cm?

the results from a pre-test for students for the year 2000 and the year 2010 are illustrated in the box plot. what do these results tell us about how students performed on the 29 question pre-test for the two years?

if we compare only the lowest and highest scores between the two years, we might conclude that the students in 2010 did better than the students in 2010. this conclusion seems to follow since the lowest score of 8 in 2010 is greater in value than the lowest score of 6 in 2000. also, the highest score of 28 in 2010 is greater in value than the highest score of 27 in 2000.

but the box portion of the illustration gives us more detailed information. the middle bar in each box shows us that the median score of 20 in 2000 is greater in value than the median score of 17 in 2010. further, we note that the box and whiskers divide the illustration into four pieces. each of these four pieces represents the same portion of students. so, the upper half of the students in 2000 scored in the same score range as the upper one-fourth of the students in 2010, see the illustration at a score of 20.

by considering the upper one-fourth, upper half, and upper three-fourths instead of just the lowest and highest scores, we would conclude that the students as a whole did much better in 2000 than in 2010. we would conclude that as a whole the students in 2010 are less prepared than the students in 2000.

in this section, we discuss box-and-whisker plots and the five key values used in constructing a box-and-whisker plot. the key values are called a five-number summary, which consists of the minimum, first quartile, median, third quartile, and maximum.

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answer: b

step-by-step explanation: im sorry bro bro but thats not a eqation the human mind can answer and plus im a devil

ur right ive taken the test

step-by-step explanation:

well if he bought them at 5 cedis each sold them at 7 cedis each then he would make a profit of 2 cedis of each book. if in total he made 150 cedis profit that means he sold 75 books. he lost 12 books at the start so that means he originally bought a total of 82 books.

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