Iar Math Statistics and Geometry

Which can be used to find the sum of the measures of the interior angles of any polygon?

• n x 180, where n is the number of sides

• (n-2) x 180 where n is the number of sides

• The sum is always 180.

• The sum is always 360.

Lines in the same plane that never meet are called:

• perpendicular

• skew

• supplementary

• parallel

The three angles of a triangle measure x, 2x, and 6x. What is the value of x?

• 9

• 20

• 40

• 90

Which sentence describes the relationship shown on this scatter plot?

• As the temperature decreases, the visitors increase.

• As the temperature increases, the number of visitors increases.

• As the visitors increase, the temperature decreases.

• No correlation

Which scatter plot shows a linear relationship between x and y?

• Graph A

• Graph B

• Graph C

• Graph D

The scatter plot shows the relationship between the number of chapters and the total number of pages for several books. Use the trend line to predict how many pages would be in a book with 6 chapters. 

• ≅100 pages

• ≅170 pages

• ≅60 pages

• ≅20 pages

What is the equation of the line of best fit?

• y= 6x + 2

• y = -2x +6

Mrs. Wendel made a scatte rplot to show the relationship between the number of absences and a student’s final exam score. Based on this scatte rplot, a student with 6 absences should get approximately what score on the final exam? 

• 65

• 92

• 70

• 76

Which set of sides would make a right triangle?

• 4,5,6

• 8,10,12

• 5,12,13

• 5,10,12

Casey travels from her house directly west to the bank and then directly north from the bank to the mall. She then travels home on the road connecting the mall and her house. What is her total distance traveled?

• 17 miles

• 32 miles

• 37 miles

• 40 miles