Triangle XYZ is similar to triangle QRS. Which transformation was used to map triangle XYZ to triangle QRS? A)
reflection across the x-axis and a reduction using a scale factor of 1/2

B)
translation of 3 units right and a reduction using a scale factor of 1/2

C)
reflection across the y-axis and an enlargement using a scale factor of 2

D)
90° clockwise rotation and an enlargement using a scale factor of 2

Place the following steps in order to complete the square and solve the quadratic equation,

Arestaurant offers delivery for their pizzas. the total cost the customer pays is the price of the pizzas, plus a delivery fee. one customer pays $23 to have 2 pizzas delivered. another customer pays $59 for 6 pizzas. how many pizzas are delivered to a customer who pays $86?

Agroup of student volunteers participates in a study designed to assess several behavioral interventions for improving output in a repetitive task. prior to the beginning of the study, all volunteers unknowingly observed, and their output is measured. at the beginning of the study, prior to any intervention, the volunteers perform the same task under the observation of a study administrator, and their overall output increases. which of the following terms describes this phenomenon? a. simpson's paradox b. hawthorne effect are d. novelty effect d. pygmalion effect e. observer-expectancy effect