Mathematics, 03.02.2021 19:40 tianna08
A study showed a correlation between the number of umbrellas sold at a local store and the number of days of inside recess at the nearest
school.
Which lurking variable would explain the correlation between the number of umbrellas sold and the number of days of inside recess?
O A. the size of the gym at the school
O B. the amount of rainfall in the town
O c. the price of umbrellas at the store
O D. the number of people wearing rain jackets
O E the distance between the school and the store
Answers: 1
Mathematics, 21.06.2019 15:30
Will give are given that xy is parallel to zw. if xz is a transversal that intercepts xy and zw, angle angle alternate interior angles. since xy is parallel to zw, we know that these angles are we also know that angle xvy and angle zvw are , and thus congruent. we can conclude that △xyv ~ △zwv using the similarity theorem.
Answers: 2
Mathematics, 21.06.2019 21:00
How many kilograms of a 5% salt solution and how many kilograms of a 15% salt solution must be mixed together to make 45kg of an 8% salt solution?
Answers: 3
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