3.Consider this scatter plot. Test Scores in Relation to Homework

Hours of Homework
(a)Is the relationship linear or not linear? Justify your response.
(b)Is the relationship increasing or decreasing? Find the slope and use it to help justify your answer.
(c)Paul uses the function y = 7x + 30 to model the situation. What score does Paul’s model predict for 3 hours of homework? Hint: It’s _not_ asking you to use the graph.
(d)Describe what the number 30 in Part (c) mean in the context of the situation? Hint: Think about what kind of function equation you have in Part B.

Part A)

Part B)

Part C)

Part D

How can you find the mean absolute deviation (mad) for this set of data?

Use the following statements to write a compound statement for the conjunction or disjunction. then find its truth value. p: an isosceles triangle has two congruent sides. q: a right angle measures 90° r: four points are always coplanar. s: a decagon has 12 sides. a) a right angle measures 90° or an isosceles triangle has two congruent sides; true. b) a right angle measures 90° and an isosceles triangle has two congruent sides; true. c) a right angle measures 90° and an isosceles triangle does not have two congruent sides; false. d) a right angle measures 90° or an isosceles triangle does not have two congruent sides; true.

Arectangle has a perimeter of 20 cm. the length, x cm, of one side of this rectangle is uniformly distributed between 1 cm and 7 cm. find the probability that the length of the longer side of the rectangle is more than 6 cm long.