Question

12. Grace and Sally are making decorations for their senior prom. One of the decorations is a sphere with a 3 foot diameter that they are going to paper mache with 35% silver paper and 65% gold paper. If each roll of paper covers 5 square feet and costs $8.00, how much money will the girls spend on gold paper?

A. $48.00

B. $24.00

C. $32.00

13. The probability that event N will occur is 0.74. The probability that event N and event O will occur is 0.1628. If N and O are independent events, what is the probability that event O will not occur?

A. 0.26

B. 0.58

C. 0.78

14. Which of the following is LEAST likely to be used as a summative assessment for teaching students about fractions?

A. students writing an explanation of how to order improper fractions.

B. students putting improper fractions in ascending order as a warm-up activity at the board

C. students participating in individual teacher-student interviews on fraction concepts

15. What concept should students be comfortable with before starting a unit on solving simple equations?

A. greatest common factor

B. least common multiple

C. order of operations

16. A teacher is introducing a new concept to her class. She explains the concept and then does one example problem. Next, she writes a problem on the board for the students to try. What is the best next step for the teacher to take?

A. Give students the opportunity to discuss their thoughts with a neighbor, then allow them time to formulate and answer.

B. Provide the answer to the questions and ask students for a thumbs up if they agree.

C. Give the students 5 minutes to complete the problem, then collect and grade as a quiz.

17. During a unit on finances, a teacher begins an activity by randomly assigning a job and a salary to each student in class. Which of the following real-life situations is best to help students understand gross income versus net income?

A. Students must pay taxes on their earnings.

B. Students can have a portion of the earnings put into savings.

C. Students may purchase bonds.

18. Carrie conducts a random survey of 125 seniors at her high school about their lunch habits. Of the 125 students she surveyed, 50 students reported that they eat fast-food for at least 2 lunches a week. Which of the following statements is a reasonable conclusion for her statistical study?

A. Carrie concludes that the proportion of all students in her high school who eat at least two fast-food lunches a week is approximately 40%. B. If Carrie conducts this survey again with a different random sample of 125 seniors, the proportion of seniors who eat at least two fast-food lunches a week will be 40%.

C. Carrie concludes with 95% confidence that the true proportion of seniors at her school who eat at least two fast-food lunches a week is between 31% and 49%.

19. Sarah wants to put her TV in the corner of her living room where it is most viewable from her couch. If her TV is 50 inches wide and the distance along the wall from the TV to the corner is 25 inches, what is the angle between that wall and the TV?

A. 45°

B. 60°

C. The measure of the angle cannot be determined with the information given.

Answer 1